Exhibit 1(A)(8)(C)

                             PARTICIPATION AGREEMENT

                                      AMONG

                          MFS VARIABLE INSURANCE TRUST,

                   MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY


                                       AND

                    MASSACHUSETTS FINANCIAL SERVICES COMPANY


         THIS AGREEMENT, made and entered into this ____ day of ____ 1998, by
and among MFS VARIABLE INSURANCE TRUST, a Massachusetts business trust (the
"Trust"), MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY, a Massachusetts
corporation (the "Company") on its own behalf and on behalf of each of the
segregated asset accounts of the Company set forth in Schedule A hereto, as may
be amended from time to time (the "Accounts"), and MASSACHUSETTS FINANCIAL
SERVICES COMPANY, a Delaware corporation ("MFS").

         WHEREAS, the Trust is registered as an open-end management investment
company under the Investment Company Act of 1940, as amended (the "1940 Act"),
and its shares are registered or will be registered under the Securities Act of
1933, as amended (the "1933 Act");

         WHEREAS, shares of beneficial interest of the Trust are divided into
several series of shares, each representing the interests in a particular
managed pool of securities and other assets;

         WHEREAS, the series of shares of the Trust offered by the Trust to the
Company and the Accounts are set forth on Schedule A attached hereto (each, a
"Portfolio," and, collectively, the "Portfolios");

         WHEREAS, MFS is duly registered as an investment adviser under the
Investment Advisers Act of 1940, as amended, and any applicable state securities
law, and is the Trust's investment adviser;

         WHEREAS, the Company will issue certain variable annuity and/or
variable life insurance contracts (individually, the "Policy" or, collectively,
the "Policies") which, if required by applicable law, will be registered under
the 1933 Act;

         WHEREAS, the Accounts are duly organized, validly existing segregated
asset accounts, established by resolution of the Board of Directors of the
Company, to set aside and invest assets attributable to the aforesaid variable
annuity and/or variable life insurance contracts that are allocated to the
Accounts (the Policies and the Accounts covered by this Agreement, and each
corresponding Portfolio covered by this Agreement in which the Accounts invest,
is specified in Schedule A attached hereto as may be modified from time to
time);

                                      80

 
         WHEREAS, the Company has registered or will register the Accounts as
unit investment trusts under the 1940 Act (unless exempt therefrom);

         WHEREAS, MFS Fund Distributors, Inc. (the "Underwriter") is registered
as a broker-dealer with the Securities and Exchange Commission (the "SEC") under
the Securities Exchange Act of 1934, as amended (hereinafter the "1934 Act"),
and is a member in good standing of the National Association of Securities
Dealers, Inc. (the "NASD");

         WHEREAS, MML Distributors, LLC, the principal underwriter for the
individual variable annuity and the variable life policies, and MML Investors
Services, Inc., the co-underwriter of the policies, are both registered as
broker-dealers with the SEC under the 1934 Act and are members in good standing
of the NASD; and

         WHEREAS, to the extent permitted by applicable insurance laws and
regulations, the Company intends to purchase shares in one or more of the
Portfolios specified in Schedule A attached hereto (the "Shares") on behalf of
the Accounts to fund the Policies, and the Trust intends to sell such Shares to
the Accounts at net asset value;

         NOW, THEREFORE, in consideration of their mutual promises, the Trust,
MFS, and the Company agree as follows:


ARTICLE I.  SALE OF TRUST SHARES
            --------------------

         1.1. The Trust agrees to sell to the Company those Shares which the
         Accounts order (based on orders placed by Policy holders on that
         Business Day, as defined below) and which are available for purchase by
         such Accounts, executing such orders on a daily basis at the net asset
         value next computed after receipt by the Trust or its designee of the
         order for the Shares. For purposes of this Section 1.1, the Company
         shall be the designee of the Trust for receipt of such orders from
         Policy owners and receipt by such designee shall constitute receipt by
         the Trust; provided that the Trust receives notice of such orders by
         9:30 a.m. New York time on the next following Business Day. "Business
         Day" shall mean any day on which the New York Stock Exchange, Inc. (the
         "NYSE") is open for trading and on which the Trust calculates its net
         asset value pursuant to the rules of the SEC.

         1.2. The Trust agrees to make the Shares available indefinitely for
         purchase at the applicable net asset value per share by the Company and
         the Accounts on those days on which the Trust calculates its net asset
         value pursuant to rules of the SEC and the Trust shall calculate such
         net asset value on each day which the NYSE is open for trading.
         Notwithstanding the foregoing, the Board of Trustees of the Trust (the
         "Board") may refuse to sell any Shares to the Company and the Accounts,
         or suspend or terminate the offering of the Shares if such action is
         required by law or by regulatory authorities having jurisdiction or is,
         in the sole discretion of the Board acting in good faith and in light
         of its fiduciary duties under federal and any applicable state laws,
         necessary in the best interest of the Shareholders of such Portfolio.

                                      81

 
         1.3. The Trust and MFS agree that the Shares will be sold only to
         insurance companies which have entered into participation agreements
         with the Trust and MFS (the "Participating Insurance Companies") and
         their separate accounts, qualified pension and retirement plans and MFS
         or its affiliates. The Trust and MFS will not sell Trust shares to any
         insurance company or separate account unless an agreement containing
         provisions substantially the same as Articles III and VII of this
         Agreement is in effect to govern such sales. The Company will not
         resell the Shares except to the Trust or its agents.

         1.4. The Trust agrees to redeem for cash, on the Company's request, any
         full or fractional Shares held by the Accounts (based on orders placed
         by Policy owners on that Business Day), executing such requests on a
         daily basis at the net asset value next computed after receipt by the
         Trust or its designee of the request for redemption. For purposes of
         this Section 1.4, the Company shall be the designee of the Trust for
         receipt of requests for redemption from Policy owners and receipt by
         such designee shall constitute receipt by the Trust; provided that the
         Trust receives notice of such request for redemption by 9:30 a.m. New
         York time on the next following Business Day.

         1.5. Each purchase, redemption and exchange order placed by the Company
         shall be placed separately for each Portfolio and shall not be netted
         with respect to any Portfolio. However, with respect to payment of the
         purchase price by the Company and of redemption proceeds by the Trust,
         the Company and the Trust shall net purchase and redemption orders with
         respect to each Portfolio and shall transmit one net payment for all of
         the Portfolios in accordance with Section 1.6 hereof.

         1.6. In the event of net purchases, the Company shall pay for the
         Shares by 2:00 p.m. New York time on the next Business Day after an
         order to purchase the Shares is made in accordance with the provisions
         of Section 1.1. hereof. In the event of net redemptions, the Trust
         shall pay the redemption proceeds by 2:00 p.m. New York time on the
         next Business Day after an order to redeem the shares is made in
         accordance with the provisions of Section 1.4. hereof. All such
         payments shall be in federal funds transmitted by wire.

         1.7. Issuance and transfer of the Shares will be by book entry only.
         Stock certificates will not be issued to the Company or the Accounts.
         The Shares ordered from the Trust will be recorded in an appropriate
         title for the Accounts or the appropriate subaccounts of the Accounts.

         1.8. The Trust shall furnish same day notice (by electronic
         transmission and/or facsimile by 6:30p.m. New York time) to the Company
         of any dividends or capital gain distributions payable on the Shares.
         The Company hereby elects to receive all such dividends and
         distributions as are payable on a Portfolio's Shares in additional
         Shares of that Portfolio. The Trust shall notify the Company of the
         number of Shares so issued as payment of such dividends and
         distributions.

         1.9. The Trust or its custodian shall make the net asset value per
         share for each Portfolio available to the Company on each Business Day
         as soon as reasonably practical after the net asset value per share is
         calculated and shall use its best efforts to make such net asset value
         per share available by 6:30 p.m. New York time via electronic
         transmission and/or facsimile. In 

                                      82

 
         the event that the Trust is unable to meet the 6:30 p.m. time
         stated herein, it shall provide additional time for the Company
         to place orders for the purchase and redemption of Shares. Such
         additional time shall be equal to the additional time which the
         Trust takes to make the net asset value available to the Company.
         If the Trust provides materially incorrect share net asset value
         information, the Trust shall make an adjustment to the number of
         shares purchased or redeemed for the Accounts to reflect the
         correct net asset value per share. Any material error in the
         calculation or reporting of net asset value per share, dividend
         or capital gains information shall be reported promptly upon
         discovery to the Company via telephone followed by written
         documentation of the error.

ARTICLE II.  CERTAIN REPRESENTATIONS, WARRANTIES AND COVENANTS
             -------------------------------------------------

         2.1. The Company represents and warrants that the Policies are or will
         be registered under the 1933 Act or are exempt from or not subject to
         registration thereunder, and that the Policies will be issued, sold,
         and distributed in compliance in all material respects with all
         applicable state and federal laws, including without limitation the
         1933 Act, the Securities Exchange Act of 1934, as amended (the "1934
         Act"), and the 1940 Act. The Company further represents and warrants
         that it is an insurance company duly organized and in good standing
         under applicable law and that it has legally and validly established
         the Account as a segregated asset account under applicable law and has
         registered or, prior to any issuance or sale of the Policies, will
         register the Accounts as unit investment trusts in accordance with the
         provisions of the 1940 Act (unless exempt therefrom) to serve as
         segregated investment accounts for the Policies, and that it will
         maintain such registration for so long as any Policies are outstanding.
         The Company shall amend the registration statements under the 1933 Act
         for the Policies and the registration statements under the 1940 Act for
         the Accounts from time to time as required in order to effect the
         continuous offering of the Policies or as may otherwise be required by
         applicable law. The Company shall register and qualify the Policies for
         sales in accordance with the securities laws of the various states only
         if and to the extent deemed necessary by the Company.

         2.2. The Company represents and warrants that the Policies are
         currently and at the time of issuance will be treated as life
         insurance, endowment or annuity contract under applicable provisions of
         the Internal Revenue Code of 1986, as amended (the "Code"), that it
         will maintain such treatment and that it will notify the Trust or MFS
         immediately upon having a reasonable basis for believing that the
         Policies have ceased to be so treated or that they might not be so
         treated in the future.

         2.3. The Company represents and warrants that MML Distributors, LLC and
         MML Investors Services, Inc., the underwriters for the individual
         variable annuity and the variable life policies, are members in good
         standing of the NASD and are registered broker-dealers with the SEC.
         The Company represents and warrants that the Company, MML Distributors,
         LLC and MML Investors Services, Inc. will sell and distribute such
         policies in accordance in all material respects with all applicable
         state and federal securities laws, including without limitation the
         1933 Act, the 1934 Act, and the 1940 Act.

         2.4. The Trust and MFS represent and warrant that the Shares sold
         pursuant to this Agreement shall be registered under the 1933 Act, duly
         authorized for issuance and sold in 


                                      83

 
         compliance with the laws of The Commonwealth of Massachusetts and
         all applicable federal and state securities laws and that the
         Trust is and shall remain registered under the 1940 Act. The
         Trust shall amend the registration statement for its Shares under
         the 1933 Act and the 1940 Act from time to time as required in
         order to effect the continuous offering of its Shares. The Trust
         shall register and qualify the Shares for sale in accordance with
         the laws of the various states only if and to the extent deemed
         necessary by the Trust.

         2.5. MFS represents and warrants that the Underwriter is a member in
         good standing of the NASD and is registered as a broker-dealer with the
         SEC. The Trust and MFS represent that the Trust and the Underwriter
         will sell and distribute the Shares in accordance in all material
         respects with all applicable state and federal securities laws,
         including without limitation the 1933 Act, the 1934 Act, and the 1940
         Act.

         2.6. The Trust represents that it is lawfully organized and validly
         existing under the laws of The Commonwealth of Massachusetts and that
         it does and will comply in all material respects with the 1940 Act and
         any applicable regulations thereunder.

         2.7. MFS represents and warrants that it is and shall remain duly
         registered under all applicable federal securities laws and that it
         shall perform its obligations for the Trust in compliance in all
         material respects with any applicable federal securities laws and with
         the securities laws of The Commonwealth of Massachusetts. MFS
         represents and warrants that it is not subject to state securities laws
         other than the securities laws of The Commonwealth of Massachusetts and
         that it is exempt from registration as an investment adviser under the
         securities laws of The Commonwealth of Massachusetts.

         2.8. No less frequently than annually, the Company shall submit to the
         Board such reports, material or data as the Board may reasonably
         request so that it may carry out fully the obligations imposed upon it
         by the conditions contained in the exemptive application pursuant to
         which the SEC has granted exemptive relief to permit mixed and shared
         funding (the "Mixed and Shared Funding Exemptive Order").


ARTICLE III.  PROSPECTUS AND PROXY STATEMENTS; VOTING
              ---------------------------------------

         3.1. At least annually, the Trust or its designee shall provide the
         Company, free of charge, with as many copies of the current prospectus
         (describing only the Portfolios listed in Schedule A hereto) for the
         Shares as the Company may reasonably request for distribution to
         existing Policy owners whose Policies are funded by such Shares. The
         Trust or its designee shall provide the Company, at the Company's
         expense, with as many copies of the current prospectus for the Shares
         as the Company may reasonably request for distribution to prospective
         purchasers of Policies. If requested by the Company in lieu thereof,
         the Trust or its designee shall provide such documentation (including a
         "camera ready" copy of the new prospectus as set in type or, at the
         request of the Company, as a diskette in the form sent to the financial
         printer) and other assistance as is reasonably necessary in order for
         the parties hereto once each year (or more frequently if the prospectus
         for the Shares is supplemented or amended) to have the prospectus for
         the Policies and the prospectus for the Shares printed together in one
         document; the expenses of such printing to be apportioned between (a) 
         the
         

                                      84

 
         Company and (b) the Trust or its designee in proportion to the number
         of pages of the Policy and Shares' prospectuses, taking account of
         other relevant factors affecting the expense of printing, such as
         covers, columns, graphs and charts; the Trust or its designee to bear
         the cost of printing the Shares' prospectus portion of such document
         for distribution to owners of existing Policies funded by the Shares
         and the Company to bear the expenses of printing the portion of such
         document relating to the Accounts; provided, however, that the Company
                                            --------
         shall bear all printing expenses of such combined documents where used
         for distribution to prospective purchasers or to owners of existing
         Policies not funded by the Shares. In the event that the Company
         requests that the Trust or its designee provides the Trust's prospectus
         in a "camera ready" or diskette format, the Trust shall be responsible
         for providing the prospectus in the format in which it or MFS is
         accustomed to formatting prospectuses and shall bear the expense of
         providing the prospectus in such format (e.g., typesetting expenses),
                                                  ---
         and the Company shall bear the expense of adjusting or changing the
         format to conform with any of its prospectuses.

         3.2. The prospectus for the Shares shall state that the statement of
         additional information for the Shares is available from the Trust or
         its designee. The Trust or its designee, at its expense, shall print
         and provide such statement of additional information to the Company (or
         a master of such statement suitable for duplication by the Company) for
         distribution to any owner of a Policy funded by the Shares. The Trust
         or its designee, at the Company's expense, shall print and provide such
         statement to the Company (or a master of such statement suitable for
         duplication by the Company) for distribution to a prospective purchaser
         who requests such statement or to an owner of a Policy not funded by
         the Shares.

         3.3. The Trust or its designee shall provide the Company free of charge
         copies, if and to the extent applicable to the Shares, of the Trust's
         proxy materials, reports to Shareholders and other communications to
         Shareholders in such quantity as the Company shall reasonably require
         for distribution to Policy owners. In lieu thereof, the Trust or its
         designee shall provide such documentation to the Company, at the
         Company's option, in camera ready format or pdf files and other
         assistance as is reasonably necessary in order for the Company to print
         such shareholder communications for distribution to Policy Owners, at
         the expense of the Trust.

         The Trust shall use its best efforts to notify the Company within a
         reasonable time of any proxy proposals for shareholders.

         All expenses associated with proxy solicitations shall be borne by the
         Trust as appropriate, including, but not limited to, printing,
         distribution and cost of tabulating the proxies.

         3.4. Notwithstanding the provisions of Sections 3.1, 3.2, and 3.3
         above, or of Article V below, the Company shall pay the expense of
         printing or providing documents to the extent such cost is considered a
         distribution expense. Distribution expenses would include by way of
         illustration, but are not limited to, the printing of the Shares'
         prospectus or prospectuses for distribution to prospective purchasers
         or to owners of existing Policies not funded by such Shares.


                                      85

 
         3.5. The Trust hereby notifies the Company that it may be appropriate
         to include in the prospectus pursuant to which a Policy is offered
         disclosure regarding the potential risks of mixed and shared funding.

         3.6.  If and to the extent required by law, the Company shall:

               (a)  solicit voting instructions from Policy owners;

               (b)  vote the Shares in accordance with instructions received
                    from Policy owners; and

               (c)  vote the Shares for which no instructions have been received
                    in the same proportion as the Shares of such Portfolio for
                    which instructions have been received from Policy owners;

         so long as and to the extent that the SEC continues to interpret the
         1940 Act to require pass through voting privileges for variable
         contract owners. The Company will in no way recommend action in
         connection with or oppose or interfere with the solicitation of proxies
         for the Shares held for such Policy owners. The Company reserves the
         right to vote shares held in any segregated asset account in its own
         right, to the extent permitted by law. Participating Insurance
         Companies shall be responsible for assuring that each of their separate
         accounts holding Shares calculates voting privileges in the manner
         required by the Mixed and Shared Funding Exemptive Order. The Trust and
         MFS will notify the Company of any changes of interpretations or
         amendments to the Mixed and Shared Funding Exemptive Order.


ARTICLE IV.  SALES MATERIAL AND INFORMATION
             ------------------------------

         4.1. The Company shall furnish, or shall cause to be furnished, to the
         Trust or its designee, each piece of sales literature or other
         promotional material in which the Trust, MFS, any other investment
         adviser to the Trust, or any affiliate of MFS are named, at least three
         (3) Business Days prior to its use. No such material shall be used if
         the Trust, MFS, or their respective designees reasonably objects to
         such use within three (3) Business Days after receipt of such material.
         These review procedures shall not apply to any sales literature or
         other promotional material produced by the Company if all references in
         such literature regarding the Trust, MFS, any other investment adviser
         to the Trust or any affiliate of MFS are identical to those that appear
         in the Trust's prospectus or Statement of Additional Information.

         4.2. The Company shall not give any information or make any
         representations or statement on behalf of the Trust, MFS, any other
         investment adviser to the Trust, or any affiliate of MFS or concerning
         the Trust or any other such entity in connection with the sale of the
         Policies other than the information or representations contained in the
         registration statement, prospectus or statement of additional
         information for the Shares, as such registration statement, prospectus
         and statement of additional information may be amended or supplemented
         from time to time, or in reports or proxy statements for the Trust, or
         in sales literature or other promotional material approved by the
         Trust, MFS or their respective designees, except with the permission of
         the Trust, MFS or their respective designees. The Trust, MFS or their

                                      86

 
         respective designees each agrees to respond to any request for approval
         on a prompt and timely basis. The Company shall adopt and implement
         procedures reasonably designed to ensure that information concerning
         the Trust, MFS or any of their affiliates which is intended for use
         only by brokers or agents selling the Policies (i.e., information that
         is not intended for distribution to Policy owners or prospective Policy
         owners) is so used, and neither the Trust, MFS nor any of their
         affiliates shall be liable for any losses, damages or expenses relating
         to the improper use of such broker only materials.

         4.3. The Trust or its designee shall furnish, or shall cause to be
         furnished, to the Company or its designee, each piece of sales
         literature or other promotional material in which the Company and/or
         the Accounts is named, at least three (3) Business Days prior to its
         use. No such material shall be used if the Company or its designee
         reasonably objects to such use within three (3) Business Days after
         receipt of such material.

         4.4. The Trust and MFS shall not give, and agree that the Underwriter
         shall not give, any information or make any representations on behalf
         of the Company or concerning the Company, the Accounts, or the Policies
         in connection with the sale of the Policies other than the information
         or representations contained in a registration statement, prospectus,
         or statement of additional information for the Policies, as such
         registration statement, prospectus and statement of additional
         information may be amended or supplemented from time to time, or in
         reports for the Accounts, or in sales literature or other promotional
         material approved by the Company or its designee, except with the
         permission of the Company. The Company or its designee agrees to
         respond to any request for approval on a prompt and timely basis. The
         parties hereto agree that this Section 4.4. is neither intended to
         designate nor otherwise imply that MFS is an underwriter or distributor
         of the Policies.

         4.5. The Company and the Trust (or its designee in lieu of the Company
         or the Trust, as appropriate) will each provide to the other at least
         one complete copy of all registration statements, prospectuses,
         statements of additional information, reports, proxy statements, sales
         literature and other promotional materials, applications for
         exemptions, requests for no-action letters, and all amendments to any
         of the above, that relate to the Policies, or to the Trust or its
         Shares, prior to or contemporaneously with the filing of such document
         with the SEC or other regulatory authorities. The Company and the Trust
         shall also each promptly inform the other of the results of any
         examination by the SEC (or other regulatory authorities) that relates
         to the Policies, the Trust or its Shares, and the party that was the
         subject of the examination shall provide the other party with a copy of
         relevant portions of any "deficiency letter" or other correspondence or
         written report regarding any such examination.

         4.6. The Trust and MFS will provide the Company with as much notice as
         is reasonably practicable of any proxy solicitation for any Portfolio,
         and of any material change in the Trust's registration statement,
         particularly any change resulting in change to the registration
         statement or prospectus or statement of additional information for any
         Account. The Trust and MFS will cooperate with the Company so as to
         enable the Company to solicit proxies from Policy owners or to make
         changes to its prospectus, statement of additional information or
         registration statement, in an orderly manner. The Trust and MFS will
         make reasonable efforts to attempt to have changes affecting Policy
         prospectuses become effective simultaneously with the annual updates
         for such prospectuses.


                                      87

 
         4.7. For purpose of this Article IV and Article VIII, the phrase "sales
         literature or other promotional material" includes but is not limited
         to advertisements (such as material published, or designed for use in,
         a newspaper, magazine, or other periodical, radio, television,
         telephone or tape recording, videotape display, signs or billboards,
         motion pictures, or other public media), and sales literature (such as
         brochures, circulars, reprints or excerpts or any other advertisement,
         sales literature, or published articles), distributed or made generally
         available to customers or the public, educational or training materials
         or communications distributed or made generally available to some or
         all agents or employees.


ARTICLE V.  FEES AND EXPENSES
            -----------------

         5.1. The Trust shall pay no fee or other compensation to the Company
         under this Agreement, and the Company shall pay no fee or other
         compensation to the Trust, except that if the Trust or any Portfolio
         adopts and implements a plan pursuant to Rule 12b-1 under the 1940 Act
         to finance distribution and Shareholder servicing expenses, then,
         subject to obtaining any required exemptive orders or regulatory
         approvals, the Trust may make payments to the Company or to the
         underwriter for the Policies if and in amounts agreed to by the Trust
         in writing. Each party, however, shall, in accordance with the
         allocation of expenses specified in Articles III and V hereof,
         reimburse other parties for expenses initially paid by one party but
         allocated to another party. In addition, nothing herein shall prevent
         the parties hereto from otherwise agreeing to perform, and arranging
         for appropriate compensation for, other services relating to the Trust
         and/or to the Accounts.

         5.2. The Trust or its designee shall bear the expenses for the cost of
         registration and qualification of the Shares under all applicable
         federal and state laws, including preparation and filing of the Trust's
         registration statement, and payment of filing fees and registration
         fees; preparation and filing of the Trust's proxy materials and reports
         to Shareholders; setting in type and printing its prospectus and
         statement of additional information (to the extent provided by and as
         determined in accordance with Article III above); setting in type and
         printing the proxy materials and reports to Shareholders (to the extent
         provided by and as determined in accordance with Article III above);
         the preparation of all statements and notices required of the Trust by
         any federal or state law with respect to its Shares; all taxes on the
         issuance or transfer of the Shares; and the costs of distributing the
         Trust's prospectuses and proxy materials to owners of Policies funded
         by the Shares and any expenses permitted to be paid or assumed by the
         Trust pursuant to a plan, if any, under Rule 12b-1 under the 1940 Act.
         The Trust shall not bear any expenses of marketing the Policies.

         5.3. The Company shall bear the expenses of distributing the Shares'
         prospectus or prospectuses in connection with new sales of the Policies
         and of distributing the Trust's Shareholder reports to Policy owners.
         The Company shall bear all expenses associated with the registration,
         qualification, and filing of the Policies under applicable federal
         securities and state insurance laws; the cost of preparing, printing
         and distributing the Policy prospectus and statement of additional
         information; and the cost of preparing, printing and distributing
         annual individual account statements for Policy owners as required by
         state insurance laws.



                                      88

 
         5.4 MFS will quarterly reimburse the Company certain of the
         administrative costs and expenses incurred by the Company as a result
         of operations necessitated by the beneficial ownership by Policy owners
         of shares of the Portfolios of the Trust, equal to 0.20% per annum of
         the net assets of the Trust attributable to variable life or variable
         annuity contracts offered by the Company. In no event shall such fee be
         paid by the Trust, its shareholders or by the Policy holders.


ARTICLE VI.  DIVERSIFICATION AND RELATED LIMITATIONS
             ---------------------------------------

         6.1. The Trust and MFS represent and warrant that each Portfolio of the
         Trust will meet the diversification requirements of Section 817 (h) (1)
         of the Code and Treas. Reg. 1.817-5, relating to the diversification
         requirements for variable annuity, endowment, or life insurance
         contracts, as they may be amended from time to time (and any revenue
         rulings, revenue procedures, notices, and other published announcements
         of the Internal Revenue Service interpreting these sections), as if
         those requirements applied directly to each such Portfolio.

         6.2. The Trust and MFS represent that each Portfolio will elect to be
         qualified as a Regulated Investment Company under Subchapter M of the
         Code and that they will maintain such qualification (under Subchapter M
         or any successor or similar provision).


ARTICLE VII.  POTENTIAL MATERIAL CONFLICTS
              ----------------------------
         7.1. The Trust agrees that the Board, constituted with a majority of
         disinterested trustees, will monitor each Portfolio of the Trust for
         the existence of any material irreconcilable conflict between the
         interests of the variable annuity contract owners and the variable life
         insurance policy owners of the Company and/or affiliated companies
         ("contract owners") investing in the Trust. The Board shall have the
         sole authority to determine if a material irreconcilable conflict
         exists, and such determination shall be binding on the Company only if
         approved in the form of a resolution by a majority of the Board, or a
         majority of the disinterested trustees of the Board. The Board will
         give prompt notice of any such determination to the Company.

         7.2. The Company agrees that it will be responsible for assisting the
         Board in carrying out its responsibilities under the conditions set
         forth in the Trust's exemptive application pursuant to which the SEC
         has granted the Mixed and Shared Funding Exemptive Order by providing
         the Board, as it may reasonably request, with all information necessary
         for the Board to consider any issues raised and agrees that it will be
         responsible for promptly reporting any potential or existing conflicts
         of which it is aware to the Board including, but not limited to, an
         obligation by the Company to inform the Board whenever contract owner
         voting instructions are disregarded. The Company also agrees that, if a
         material irreconcilable conflict arises, it will at its own cost remedy
         such conflict up to and including (a) withdrawing the assets allocable
         to some or all of the Accounts from the Trust or any Portfolio and
         reinvesting such assets in a different investment medium, including
         (but not limited to) another Portfolio of the Trust, or submitting to a
         vote of all affected contract owners whether to withdraw assets from
         the Trust or any Portfolio and reinvesting such assets in a different
         investment medium and, as appropriate, segregating the assets
         attributable to any appropriate group of contract owners that 



                                      89

 
         votes in favor of such segregation, or offering to any of the
         affected contract owners the option of segregating the assets
         attributable to their contracts or policies, and (b) establishing
         a new registered management investment company and segregating
         the assets underlying the Policies, unless a majority of Policy
         owners materially adversely affected by the conflict have voted
         to decline the offer to establish a new registered management
         investment company.

         7.3. A majority of the disinterested trustees of the Board shall
         determine whether any proposed action by the Company adequately
         remedies any material irreconcilable conflict. In the event that the
         Board determines that any proposed action does not adequately remedy
         any material irreconcilable conflict, the Company will withdraw from
         investment in the Trust each of the Accounts designated by the
         disinterested trustees and terminate this Agreement within six (6)
         months after the Board informs the Company in writing of the foregoing
         determination; provided, however, that such withdrawal and termination
                        --------  --------
         shall be limited to the extent required to remedy any such material
         irreconcilable conflict as determined by a majority of the
         disinterested trustees of the Board.

         7.4. If and to the extent that Rule 6e-2 and Rule 6e-3(T) are amended,
         or Rule 6e-3 is adopted, to provide exemptive relief from any provision
         of the 1940 Act or the rules promulgated thereunder with respect to
         mixed or shared funding (as defined in the Mixed and Shared Funding
         Exemptive Order) on terms and conditions materially different from
         those contained in the Mixed and Shared Funding Exemptive Order, then
         (a) the Trust and/or the Participating Insurance Companies, as
         appropriate, shall take such steps as may be necessary to comply with
         Rule 6e-2 and 6e-3(T), as amended, and Rule 6e-3, as adopted, to the
         extent such rules are applicable; and (b) Sections 3.5, 3.6, 7.1, 7.2,
         7.3 and 7.4 of this Agreement shall continue in effect only to the
         extent that terms and conditions substantially identical to such
         Sections are contained in such Rule(s) as so amended or adopted.


ARTICLE VIII.  INDEMNIFICATION
               ---------------

         8.1.     Indemnification by the Company
                  ------------------------------

                  The Company agrees to indemnify and hold harmless the Trust,
         MFS, any affiliates of MFS, and each of their respective
         directors/trustees, officers and each person, if any, who controls the
         Trust or MFS within the meaning of Section 15 of the 1933 Act, and any
         agents or employees of the foregoing (each an "Indemnified Party," or
         collectively, the "Indemnified Parties" for purposes of this Section
         8.1) against any and all losses, claims, damages, liabilities
         (including amounts paid in settlement with the written consent of the
         Company) or expenses (including reasonable counsel fees) to which any
         Indemnified Party may become subject under any statute, regulation, at
         common law or otherwise, insofar as such losses, claims, damages,
         liabilities or expenses (or actions in respect thereof) or settlements
         are related to the sale or acquisition of the Shares or the Policies
         and:

                  (a)    arise out of or are based upon any untrue statement or
                         alleged untrue statement of any material fact contained
                         in the registration statement, prospectus or statement
                         of additional information for the Policies or contained
                         in the Policies or sales literature or other
                         promotional material for the Policies (or any


                                      90

 
                    amendment or supplement to any of the foregoing), or arise
                    out of or are based upon the omission or the alleged
                    omission to state therein a material fact required to be
                    stated therein or necessary to make the statements therein
                    not misleading provided that this agreement to indemnify
                    shall not apply as to any Indemnified Party if such
                    statement or omission or such alleged statement or omission
                    was made in reasonable reliance upon and in conformity with
                    information furnished to the Company or its designee by or
                    on behalf of the Trust or MFS for use in the registration
                    statement, prospectus or statement of additional information
                    for the Policies or in the Policies or sales literature or
                    other promotional material (or any amendment or supplement)
                    or otherwise for use in connection with the sale of the
                    Policies or Shares; or

               (b)  arise out of or as a result of statements or representations
                    (other than statements or representations contained in the
                    registration statement, prospectus, statement of additional
                    information or sales literature or other promotional
                    material of the Trust not supplied by the Company or its
                    designee, or persons under its control and on which the
                    Company has reasonably relied) or wrongful conduct of the
                    Company or persons under its control, with respect to the
                    sale or distribution of the Policies or Shares; or

               (c)  arise out of any untrue statement or alleged untrue
                    statement of a material fact contained in the registration
                    statement, prospectus, statement of additional information,
                    or sales literature or other promotional literature of the
                    Trust, or any amendment thereof or supplement thereto, or
                    the omission or alleged omission to state therein a material
                    fact required to be stated therein or necessary to make the
                    statement or statements therein not misleading, if such
                    statement or omission was made in reliance upon information
                    furnished to the Trust by or on behalf of the Company; or

               (d)  arise out of or result from any material breach of any
                    representation and/or warranty made by the Company in this
                    Agreement or arise out of or result from any other material
                    breach of this Agreement by the Company; or

               (e)  arise as a result of any failure by the Company to provide
                    the services and furnish the materials under the terms of
                    this Agreement;

         as limited by and in accordance with the provisions of this Article 
         VIII.


         8.2.  Indemnification by the Trust
               ----------------------------

               The Trust agrees to indemnify and hold harmless the Company
         and each of its directors and officers and each person, if any, who
         controls the Company within the meaning of Section 15 of the 1933 Act,
         and any agents or employees of the foregoing (each an "Indemnified
         Party," or collectively, the "Indemnified Parties" for purposes of this
         Section 8.2) against any and all losses, claims, damages, liabilities
         (including amounts paid in settlement with the written consent of the
         Trust) or expenses (including reasonable counsel fees) to which 


                                      91

 
any Indemnified Party may become subject under any statute, at common law or
otherwise, insofar as such losses, claims, damages, liabilities or expenses (or
actions in respect thereof) or settlements are related to the sale or
acquisition of the Shares or the Policies and:

               (a)  arise out of or are based upon any untrue statement or
                    alleged untrue statement of any material fact contained in
                    the registration statement, prospectus, statement of
                    additional information or sales literature or other
                    promotional material of the Trust (or any amendment or
                    supplement to any of the foregoing), or arise out of or are
                    based upon the omission or the alleged omission to state
                    therein a material fact required to be stated therein or
                    necessary to make the statement therein not misleading,
                    provided that this agreement to indemnify shall not apply as
                    to any Indemnified Party if such statement or omission or
                    such alleged statement or omission was made in reasonable
                    reliance upon and in conformity with information furnished
                    to the Trust, MFS, the Underwriter or their respective
                    designees by or on behalf of the Company for use in the
                    registration statement, prospectus or statement of
                    additional information for the Trust or in sales literature
                    or other promotional material for the Trust (or any
                    amendment or supplement) or otherwise for use in connection
                    with the sale of the Policies or Shares; or

               (b)  arise out of or as a result of statements or representations
                    (other than statements or representations contained in the
                    registration statement, prospectus, statement of additional
                    information or sales literature or other promotional
                    material for the Policies not supplied by the Trust, MFS,
                    the Underwriter or any of their respective designees or
                    persons under their respective control and on which any such
                    entity has reasonably relied) or wrongful conduct of the
                    Trust or persons under its control, with respect to the sale
                    or distribution of the Policies or Shares; or

               (c)  arise out of any untrue statement or alleged untrue
                    statement of a material fact contained in the registration
                    statement, prospectus, statement of additional information,
                    or sales literature or other promotional literature of the
                    Accounts or relating to the Policies, or any amendment
                    thereof or supplement thereto, or the omission or alleged
                    omission to state therein a material fact required to be
                    stated therein or necessary to make the statement or
                    statements therein not misleading, if such statement or
                    omission was made in reliance upon information furnished to
                    the Company by or on behalf of the Trust, MFS or the
                    Underwriter; or

               (d)  arise out of or result from any material breach of any
                    representation and/or warranty made by the Trust in this
                    Agreement (including a failure, whether unintentional or in
                    good faith or otherwise, to comply with the diversification
                    requirements specified in Article VI of this Agreement) or
                    arise out of or result from any other material breach of
                    this Agreement by the Trust; or

                                      92

 
              (e)  arise out of or result from the materially incorrect or
                   untimely calculation or reporting of the daily net asset
                   value per share or dividend or capital gain distribution
                   rate; or

              (f)  arise as a result of any failure by the Trust to provide the
                   services and furnish the materials under the terms of the
                   Agreement;

         as limited by and in accordance with the provisions of this Article
         VIII.

         8.3. In no event shall the Trust be liable under the indemnification
         provisions contained in this Agreement to any individual or entity,
         including without limitation, the Company, or any Participating
         Insurance Company or any Policy holder, with respect to any losses,
         claims, damages, liabilities or expenses that arise out of or result
         from (i) a breach of any representation, warranty, and/or covenant made
         by the Company hereunder or by any Participating Insurance Company
         under an agreement containing substantially similar representations,
         warranties and covenants; (ii) the failure by the Company or any
         Participating Insurance Company to maintain its segregated asset
         account (which invests in any Portfolio) as a legally and validly
         established segregated asset account under applicable state law and as
         a duly registered unit investment trust under the provisions of the
         1940 Act (unless exempt therefrom); or (iii) the failure by the Company
         or any Participating Insurance Company to maintain its variable annuity
         and/or variable life insurance contracts (with respect to which any
         Portfolio serves as an underlying funding vehicle) as life insurance,
         endowment or annuity contracts under applicable provisions of the Code.

         8.4. Neither the Company nor the Trust shall be liable under the
         indemnification provisions contained in this Agreement with respect to
         any losses, claims, damages, liabilities or expenses to which an
         Indemnified Party would otherwise be subject by reason of such
         Indemnified Party's willful misfeasance, willful misconduct, or gross
         negligence in the performance of such Indemnified Party's duties or by
         reason of such Indemnified Party's reckless disregard of obligations
         and duties under this Agreement.

         8.5. Promptly after receipt by an Indemnified Party under this Section
         8.5. of notice of commencement of any action, such Indemnified Party
         will, if a claim in respect thereof is to be made against the
         indemnifying party under this section, notify the indemnifying party of
         the commencement thereof; but the omission so to notify the
         indemnifying party will not relieve it from any liability which it may
         have to any Indemnified Party otherwise than under this section. In
         case any such action is brought against any Indemnified Party, and it
         notified the indemnifying party of the commencement thereof, the
         indemnifying party will be entitled to participate therein and, to the
         extent that it may wish, assume the defense thereof, with counsel
         satisfactory to such Indemnified Party. After notice from the
         indemnifying party of its intention to assume the defense of an action,
         the Indemnified Party shall bear the expenses of any additional counsel
         obtained by it, and the indemnifying party shall not be liable to such
         Indemnified Party under this section for any legal or other expenses
         subsequently incurred by such Indemnified Party in connection with the
         defense thereof other than reasonable costs of investigation.


                                      93

 
         8.6. Each of the parties agrees promptly to notify the other parties of
         the commencement of any litigation or proceeding against it or any of
         its respective officers, directors, trustees, employees or 1933 Act
         control persons in connection with the Agreement, the issuance or sale
         of the Policies, the operation of the Accounts, or the sale or
         acquisition of Shares.

         8.7. A successor by law of the parties to this Agreement shall be
         entitled to the benefits of the indemnification contained in this
         Article VIII. The indemnification provisions contained in this Article
         VIII shall survive any termination of this Agreement.


ARTICLE IX.  APPLICABLE LAW
             --------------

         9.1. This Agreement shall be construed and the provisions hereof
         interpreted under and in accordance with the laws of The Commonwealth
         of Massachusetts.

         9.2. This Agreement shall be subject to the provisions of the 1933,
         1934 and 1940 Acts, and the rules and regulations and rulings
         thereunder, including such exemptions from those statutes, rules and
         regulations as the SEC may grant and the terms hereof shall be
         interpreted and construed in accordance therewith.

ARTICLE X.  NOTICE OF FORMAL PROCEEDINGS
            ----------------------------

       The Trust, MFS, and the Company agree that each such party shall promptly
notify the other parties to this Agreement, in writing, of the institution of
any formal proceedings brought against such party or its designees by the NASD,
the SEC, or any insurance department or any other regulatory body regarding such
party's duties under this Agreement or related to the sale of the Policies, the
operation of the Accounts, or the purchase of the Shares.


ARTICLE XI.  TERMINATION
             -----------

         11.1. This Agreement shall terminate with respect to the Accounts, or
         one, some, or all Portfolios:

               (a)  at the option of any party upon six (6) months' advance
                    written notice to the other parties; or             

               (b)  at the option of the Company to the extent that the Shares
                    of Portfolios are not reasonably available to meet the
                    requirements of the Policies or are not "appropriate funding
                    vehicles" for the Policies, as reasonably determined by the
                    Company. Without limiting the generality of the foregoing,
                    the Shares of a Portfolio would not be "appropriate funding
                    vehicles" if, for example, such Shares did not meet the
                    diversification or other requirements referred to in Article
                    VI hereof; or if the Company would be permitted to disregard
                    Policy owner voting instructions pursuant to Rule 6e-2 or 
                    6e-3(T) under the 1940 Act. Prompt notice of the election to
                    terminate for such cause and an explanation of such cause
                    shall be furnished to the Trust by the Company; or

                                      94

 
               (c)  at the option of the Trust or MFS upon institution of formal
                    proceedings against the Company by the NASD, the SEC, or any
                    insurance department or any other regulatory body regarding
                    the Company's duties under this Agreement or related to the
                    sale of the Policies, the operation of the Accounts, or the
                    purchase of the Shares; or

               (d)  at the option of the Company upon institution of formal
                    proceedings against the Trust by the NASD, the SEC, or any
                    state securities or insurance department or any other
                    regulatory body regarding the Trust's or MFS' duties under
                    this Agreement or related to the sale of the Shares; or

               (e)  at the option of the Company, the Trust or MFS upon receipt
                    of any necessary regulatory approvals and/or the vote of the
                    Policy owners having an interest in the Accounts (or any
                    subaccounts) to substitute the shares of another investment
                    company for the corresponding Portfolio Shares in accordance
                    with the terms of the Policies for which those Portfolio
                    Shares had been selected to serve as the underlying
                    investment media. The Company will give thirty (30) days'
                    prior written notice to the Trust of the Date of any
                    proposed vote or other action taken to replace the Shares;
                    or

               (f)  termination by either the Trust or MFS by written notice to
                    the Company, if either one or both of the Trust or MFS
                    respectively, shall determine, in their sole judgment
                    exercised in good faith, that the Company has suffered a
                    material adverse change in its business, operations,
                    financial condition, or prospects since the date of this
                    Agreement or is the subject of material adverse publicity;
                    or

               (g)  termination by the Company by written notice to the Trust
                    and MFS, if the Company shall determine, in its sole
                    judgment exercised in good faith, that the Trust or MFS has
                    suffered a material adverse change in this business,
                    operations, financial condition or prospects since the date
                    of this Agreement or is the subject of material adverse
                    publicity; or

               (h)  at the option of any party to this Agreement, upon another
                    party's material breach of any provision of this Agreement;
                    or

               (i)  upon assignment of this Agreement, unless made with the
                    written consent of the parties hereto, except that all
                    parties shall be permitted to assign this Agreement or any
                    interest therein to their ultimate parent holding company
                    and any affiliate or subsidiary thereof, upon notice but
                    without obtaining the consent of the other parties. All
                    assignees shall be appropriately licensed and shall comply
                    with all applicable securities and insurance laws and
                    regulations.

         11.2. The notice shall specify the Portfolio or Portfolios, Policies
         and, if applicable, the Accounts as to which the Agreement is to be
         terminated.


                                      95

 
         11.3. It is understood and agreed that the right of any party hereto to
         terminate this Agreement pursuant to Section 11.1(a) may be exercised
         for cause or for no cause.

         11.4. Except as necessary to implement Policy owner initiated
         transactions, or as required by state insurance laws or regulations,
         the Company shall not redeem the Shares attributable to the Policies
         (as opposed to the Shares attributable to the Company's assets held in
         the Accounts), and the Company shall not prevent Policy owners from
         allocating payments to a Portfolio that was otherwise available under
         the Policies, until thirty (30) days after the Company shall have
         notified the Trust of its intention to do so.

         11.5. Notwithstanding any termination of this Agreement, the Trust and
         MFS shall, at the option of the Company, continue to make available
         additional shares of the Portfolios pursuant to the terms and
         conditions of this Agreement, for all Policies in effect on the
         effective date of termination of this Agreement (the "Existing
         Policies"), except as otherwise provided under Article VII of this
         Agreement. Specifically, without limitation, the owners of the Existing
         Policies shall be permitted to transfer or reallocate investment under
         the Policies, redeem investments in any Portfolio and/or invest in the
         Trust upon the making of additional purchase payments under the
         Existing Policies.

ARTICLE XII.  NOTICES
              -------

       Any notice shall be sufficiently given when sent by registered or
certified mail, overnight courier or facsimile to the other party at the address
of such party set forth below or at such other address as such party may from
time to time specify in writing to the other party.

         If to the Trust:

                  MFS Variable Insurance Trust
                  500 Boylston Street
                  Boston, Massachusetts  02116
                  Facsimile No.: (617) 954-6624
                  Attn:  Stephen E. Cavan, Secretary

         If to the Company:

                  Massachusetts Mutual Life Insurance Company
                  Office of the General Counsel
                  1295 State Street
                  Springfield, Massachusetts  01111-0001
                  Facsimile No.: (860---__)987-2992
                  Attn:  General Counsel

         If to MFS:

                  Massachusetts Financial Services Company
                  500 Boylston Street
                  Boston, Massachusetts 02116


                                      96

 
                  Facsimile No.: (617) 954-6624
                  Attn: Stephen E. Cavan, General Counsel


ARTICLE XIII.  MISCELLANEOUS
               -------------

         13.1. Subject to the requirement of legal process and regulatory
         authority, each party hereto shall treat as confidential the names and
         addresses of the owners of the Policies and all information reasonably
         identified as confidential in writing by any other party hereto and,
         except as permitted by this Agreement or as otherwise required by
         applicable law or regulation, shall not disclose, disseminate or
         utilize such names and addresses and other confidential information
         without the express written consent of the affected party until such
         time as it may come into the public domain.

         13.2. The captions in this Agreement are included for convenience of
         reference only and in no way define or delineate any of the provisions
         hereof or otherwise affect their construction or effect.

         13.3. This Agreement may be executed simultaneously in one or more
         counterparts, each of which taken together shall constitute one and the
         same instrument.

         13.4. If any provision of this Agreement shall be held or made invalid
         by a court decision, statute, rule or otherwise, the remainder of the
         Agreement shall not be affected thereby.

         13.5. The Schedule attached hereto, as modified from time to time, is
         incorporated herein by reference and is part of this Agreement.

         13.6. Each party hereto shall cooperate with each other party in
         connection with inquiries by appropriate governmental authorities
         (including without limitation the SEC, the NASD, and state insurance
         regulators) relating to this Agreement or the transactions contemplated
         hereby.

         13.7. The rights, remedies and obligations contained in this Agreement
         are cumulative and are in addition to any and all rights, remedies and
         obligations, at law or in equity, which the parties hereto are entitled
         to under state and federal laws.

         13.8. A copy of the Trust's Declaration of Trust is on file with the
         Secretary of State of The Commonwealth of Massachusetts. The Company
         acknowledges that the obligations of or arising out of this instrument
         are not binding upon any of the Trust's trustees, officers, employees,
         agents or shareholders individually, but are binding solely upon the
         assets and property of the Trust in accordance with its proportionate
         interest hereunder. The Company further acknowledges that the assets
         and liabilities of each Portfolio are separate and distinct and that
         the obligations of or arising out of this instrument are binding solely
         upon the assets or property of the Portfolio on whose behalf the Trust
         has executed this instrument. The Company also agrees that the
         obligations of each Portfolio hereunder shall be several and not joint,
         in accordance with its proportionate interest hereunder, and the
         Company agrees not to proceed against any Portfolio for the obligations
         of another Portfolio.


                                      97

 
         IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be executed in its name and on its behalf by its duly authorized
representative and its seal to be hereunder affixed hereto as of the date
specified above.

                            MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY


                            -------------------------------------------
                            By its authorized officer,


                            By:
                               ----------------------------------

                            Title:
                                  -------------------------------

                            MFS VARIABLE INSURANCE TRUST,
                            on behalf of the Portfolios
                            By its authorized officer and not individually,


                            By:
                               ----------------------------------
                                James R. Bordewick, Jr.
                                Assistant Secretary


                            MASSACHUSETTS FINANCIAL SERVICES COMPANY
                            By its authorized officer,


                            By:
                               ----------------------------------
                               Jeffrey L. Shames
                               Chairman and Chief Executive Officer


                                      98