Exhibit 99.1


                             STOCK OPTION AGREEMENT


       THIS STOCK OPTION  AGREEMENT (this  "Agreement") is made and entered into
as of May 6, 1997,  by and  between  VIRGINIA  FIRST  FINANCIAL  CORPORATION,  a
Virginia  corporation  ("Issuer"),  and SOUTHERN NATIONAL  CORPORATION,  a North
Carolina corporation ("Grantee").

       WHEREAS,  Grantee and Issuer have entered into that certain Agreement and
Plan of Reorganization, dated this date (the "Merger Agreement"), providing for,
among  other  things,  the  merger  of  Issuer  with  and  into  BB&T  Financial
Corporation of Virginia ("BB&T Financial- Virginia"),  a wholly owned Subsidiary
of Grantee, with BB&T Financial-Virginia as the surviving entity; and

       WHEREAS,  as a condition  and  inducement  to Grantee's  execution of the
Merger Agreement, Grantee has required that Issuer agree, and Issuer has agreed,
to grant Grantee the Option (as defined below);

       NOW,  THEREFORE,  in  consideration  of the  respective  representations,
warranties,  covenants  and  agreements  set  forth  herein  and in  the  Merger
Agreement, and intending to be legally bound hereby, Issuer and Grantee agree as
follows:

       1.     Defined Terms.  Capitalized terms which are used but not defined
herein shall have the meanings ascribed to such terms in the Merger Agreement.

       2.     Grant of Option. Subject to the terms and conditions set forth 
herein,  Issuer hereby grants to Grantee an irrevocable option (the "Option") to
purchase up to  1,155,127  shares,  as adjusted as set forth herein (the "Option
Shares,"  which shall include the Option Shares before and after any transfer of
such  Option  Shares),  of  common  stock of  Issuer,  $1.00 par value per share
("Issuer  Common  Stock"),  at a purchase  price per Option  Share  (subject  to
adjustment as set forth herein, the "Purchase Price") equal to $17.50.

       3.     Exercise of Option.

              (a)   Provided that (i) Grantee or Holder (as hereinafter 
defined),  as applicable,  shall not be in material  breach of its agreements or
covenants  contained  in this  Agreement  or the Merger  Agreement,  and (ii) no
preliminary  or  permanent  injunction  or other order  against the  delivery of
shares  covered by the Option issued by any court of competent  jurisdiction  in
the United States shall be in effect,  Holder may exercise the Option,  in whole
or in part,  at any time and from time to time  following  the  occurrence  of a
Purchase  Event;  provided that the Option shall  terminate and be of no further
force and effect  upon the  earliest  to occur of (A) the  Effective  Time,  (B)
subject to clause (E) below,  termination of the Merger  Agreement in accordance
with  the  terms  thereof  prior  to the  occurrence  of a  Purchase  Event or a
Preliminary  Purchase Event (other than a termination of the Merger Agreement by
Grantee  pursuant to Section 7.1(b) thereof (a "Default  Termination")),  (C) 12
months after a Default Termination,



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(D) 12 months  after any  termination  of the  Merger  Agreement  (other  than a
Default  Termination)  following  the  occurrence  of  a  Purchase  Event  or  a
Preliminary  Purchase  Event,  and (E)  subject to clause (D) above,  six months
after  termination  of the Merger  Agreement  pursuant to Section 7.1(e) thereof
(but only in the event the  shareholders  of Issuer do not approve the Agreement
and Plan of Merger); provided further, that any purchase of shares upon exercise
of the Option shall be subject to compliance  with  applicable  law,  including,
without  limitation,  the Bank Holding Company Act of 1956, as amended (the "BHC
Act").  The term  "Holder"  shall mean the holder or holders of the Option  from
time to time, including initially Grantee.


              (b)   As used herein,  a "Purchase Event" means any of the 
following events subsequent to the date of this Agreement:

                    (i)       without Grantee's prior written consent, Issuer 
       shall have  authorized,  recommended,  publicly  proposed  or publicly
       announced an  intention to authorize,  recommend or propose, or  entered
       into  an  agreement  with  any  person  (other   than  Grantee  or  any
       Subsidiary  of  Grantee)  to  effect  an  Acquisition  Transaction  (as
       defined  below).  As used herein,  the term  Subsidiary  when used with
       respect to  Issuer shall have the meaning  given  that term in the Merger
       Agreement.  As  used herein,  the term  "Acquisition  Transaction" shall
       mean (A) a  merger,  consolidation  or  similar  transaction  involving
       Issuer or  any of  its  Subsidiaries  (other  than  transactions  solely
       between  Issuer's  Subsidiaries  and other subsidiaries  of Issuer),  (B)
       the disposition,  by sale, lease, exchange or otherwise,  of  assets of
       Issuer or  any  of its  Subsidiaries  representing in  either case 15% or
       more of the  consolidated  assets of Issuer  and its Subsidiaries (other
       than a sale of loan  receivables  in a  financing  transaction   in the
       normal course of business consistent  with  past practices),  or (C) the
       issuance,  sale or other  disposition   of (including by way of merger,
       consolidation,  share exchange or any  similar  transaction)  securities
       representing  15% or more  of the voting  power  of Issuer or any of its
       Subsidiaries;

                    (ii)      any person (other than Grantee, any Subsidiary  of
       Grantee or any member of the Patton Group (as defined  below)) shall have
       acquired  beneficial  ownership  (as such term is  defined  in Rule 13d-3
       promulgated under the Exchange Act) of or the right to acquire beneficial
       ownership  of, or any "group" (as such term is defined under the Exchange
       Act),  other than a group of which Grantee or any of the  Subsidiaries of
       Grantee is a member,  shall have been formed which  beneficially  owns or
       has the right to  acquire  beneficial  ownership  of,  15% or more of the
       then-outstanding shares of Issuer Common Stock; or

                    (iii)     any member of the Patton Group (as defined below)
       shall have acquired  beneficial  ownership (as  such term is  defined in
       Rule   13d-3  promulgated  under the  Exchange  Act) of or the  right to
       acquire  beneficial  ownership  of,  or any  "group"  (as  such term  is
       defined  under the  Exchange  Act) of  which  any  member  of the  Patton
       Group is a member, other than a group of


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       which Grantee or any  Subsidiary of Grantee is a member,  shall have been
       formed  which  beneficially  owns or has the right to acquire  beneficial
       ownership of, 30% or more of the then-outstanding shares of Issuer Common
       Stock.  For the  purpose of this  Agreement,  the  "Patton  Group"  means
       William A.  Patton,  Charles  A.  Patton,  Jr.,  J. Dale  Patton,  Patton
       Associates  Limited  Partnership  and any  associate or affiliate of such
       person or entity.  As used in this Agreement,  the terms  "associate" and
       "affiliate"  shall have the meanings  specified in Rule 12b-2 promulgated
       under the Exchange Act.

              (c)   As used herein, a "Preliminary Purchase Event" means any of
 the following events:

                    (i)       any person (other than Grantee or any Subsidiary 
       of Grantee) shall have commenced  (as such term is  defined in Rule 14d-2
       under the Exchange  Act),  or shall have filed a  registration  statement
       under the  Securities  Act with  respect  to, a tender  offer or exchange
       offer to  purchase  any shares of Issuer  Common  Stock  such that,  upon
       consummation of such offer,  such person would own or control 15% or more
       of the  then-outstanding  shares of Issuer  Common  Stock  (such an offer
       being  referred  to herein as a "Tender  Offer" or an  "Exchange  Offer,"
       respectively); or

                    (ii)      the holders of Issuer Common Stock  shall not have
       approved the Merger  Agreement at the meeting of such  shareholders  held
       for the purpose of voting on the Merger Agreement, such meeting shall not
       have been held or shall have been canceled  prior to  termination  of the
       Merger Agreement,  or Issuer's Board of Directors shall have withdrawn or
       modified in a manner  adverse to Grantee the  recommendation  of Issuer's
       Board of  Directors  with respect to the Merger  Agreement,  in each case
       after any person (other than Grantee or any  Subsidiary of Grantee) shall
       have (A) made, or disclosed an intention to make, a proposal to engage in
       an  Acquisition  Transaction,  (B)  commenced  a Tender  Offer or filed a
       registration  statement  under  the  Securities  Act with  respect  to an
       Exchange Offer, or (C) filed an application (or given a notice),  whether
       in draft or final form,  under any federal or state statute or regulation
       (including  an  application  or notice  filed under the BHC Act, the Bank
       Merger Act,  the Home  Owner's Loan Act or the Change in Bank Control Act
       of 1978)  seeking  the  Consent to an  Acquisition  Transaction  from any
       federal or state governmental or regulatory authority or agency.

As used in this Agreement, "person" shall have the meaning specified in Sections
3(a)(9) and 13(d)(3) of the Exchange Act.

              (d)   In the event Holder wishes to exercise the Option,  it shall
send to Issuer a written  notice (the date of which being herein  referred to as
the "Notice  Date")  specifying (i) the total number of Option Shares it intends
to purchase pursuant to such exercise and (ii) a place and date not earlier than
three business days nor later than 15 business days from the Notice Date for the
closing (the "Closing") of such purchase (the "Closing Date").  If prior Consent
of any governmental or regulatory  agency or authority is required in connection
with such purchase, Issuer shall cooperate with Holder

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in the filing of the  required  notice or  application  for such Consent and the
obtaining of such  Consent,  and the Closing  shall occur not earlier than three
business days nor later than 15 business days following receipt of such Consents
(and expiration of any mandatory waiting periods).

       4.     Payment and Delivery of Certificates.

              (a)   On each  Closing Date,  Holder shall (i) pay to  Issuer,  in
immediately  available  funds by wire  transfer to a bank account  designated by
Issuer, an amount equal to the Purchase Price multiplied by the number of Option
Shares to be purchased on such Closing Date, and (ii) present and surrender this
Agreement to the Issuer at the address of the Issuer  specified in Section 11(f)
hereof.

              (b)   At  each  Closing,   simultaneously   with  the  delivery of
immediately  available  funds and  surrender  of this  Agreement  as provided in
Section  4(a),  (i)  Issuer  shall  deliver  to  Holder  (A)  a  certificate  or
certificates  representing  the Option  Shares to be purchased at such  Closing,
which Option  Shares shall be free and clear of all liens,  claims,  charges and
encumbrances  of any kind whatsoever and subject to no pre-emptive  rights,  and
(B) if the Option is exercised in part only, an executed new agreement  with the
same terms as this Agreement evidencing the right to purchase the balance of the
shares of Issuer  Common  Stock  purchasable  hereunder,  and (ii) Holder  shall
deliver  to  Issuer a letter  agreeing  that  Holder  shall not offer to sell or
otherwise  dispose of such Option Shares in violation of applicable  federal and
state law or of the provisions of this Agreement.

              (c)   In addition to any other legend that is required by 
applicable  law,  certificates  for the Option Shares  delivered at each Closing
shall be endorsed with a restrictive  legend which shall read  substantially  as
follows:

       THE  TRANSFER  OF  THE STOCK  REPRESENTED BY  THIS  CERTIFICATE 
       IS SUBJECT TO  RESTRICTIONS  ARISING UNDER  THE  SECURITIES ACT
       OF 1933, AS  AMENDED,  AND PURSUANT  TO  THE  TERMS OF A  STOCK
       OPTION  AGREEMENT   DATED  AS OF  MAY 6, 1997.  A COPY  OF SUCH 
       AGREEMENT WILL BE PROVIDED TO THE  HOLDER HEREOF WITHOUT CHARGE
       UPON RECEIPT BY THE ISSUER OF A WRITTEN REQUEST THEREFOR.

It is  understood  and agreed that the above legend shall be removed by delivery
of substitute  certificate(s) without such legend if Holder shall have delivered
to Issuer a copy of a letter from the staff of the SEC, or an opinion of counsel
in form and substance reasonably satisfactory to

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Issuer and its  counsel,  to the effect  that such  legend is not  required  for
purposes of the Securities Act.

       5.     Representations and Warranties of Issuer.  Issuer hereby 
represents and warrants to Grantee as follows:

              (a)   Issuer has all  requisite  corporate power and authority  to
       enter into this  Agreement  and,  subject to any  approvals  referred  to
       herein, to consummate the transactions contemplated hereby. The execution
       and delivery of this Agreement and the  consummation of the  transactions
       contemplated  hereby have been duly authorized by all necessary corporate
       action on the part of Issuer.  This  Agreement has been duly executed and
       delivered by Issuer.

              (b)   Issuer has taken all necessary corporate and other action to
       authorize  and reserve and to permit it to issue,  and, at all times from
       the date hereof until the  obligation to deliver Issuer Common Stock upon
       the exercise of the Option  terminates,  will have reserved for issuance,
       upon exercise of the Option,  the number of shares of Issuer Common Stock
       necessary  for Holder to exercise  the  Option,  and Issuer will take all
       necessary  corporate  action to  authorize  and reserve for  issuance all
       additional shares of Issuer Common Stock or other securities which may be
       issued  pursuant to Section 7 upon exercise of the Option.  The shares of
       Issuer  Common  Stock to be  issued  upon  due  exercise  of the  Option,
       including  all  additional   shares  of  Issuer  Common  Stock  or  other
       securities  which may be issuable  pursuant  to Section 7, upon  issuance
       pursuant  hereto,  shall be duly and  validly  issued,  fully  paid,  and
       nonassessable,  and  shall  be  delivered  free and  clear of all  liens,
       claims,  charges,  and  encumbrances  of any kind or  nature  whatsoever,
       including any preemptive rights of any shareholder of Issuer.

       6.     Representations and Warranties of Grantee.  Grantee hereby 
represents and warrants to Issuer that:

              (a)   Grantee has all requisite corporate  power and  authority to
       enter into this  Agreement  and,  subject to any  approvals  or  consents
       referred to herein, to consummate the transactions  contemplated  hereby.
       The execution and delivery of this Agreement and the  consummation of the
       transactions  contemplated  hereby  have  been  duly  authorized  by  all
       necessary  corporate  action on the part of Grantee.  This  Agreement has
       been duly executed and delivered by Grantee.

              (b)   This  Option is not  being, and any  Option  Shares or other
       securities  acquired by Grantee upon  exercise of the Option will not be,
       acquired with a view to the public  distribution  thereof and will not be
       transferred or otherwise  disposed of except in a transaction  registered
       or exempt from registration under the Securities Laws.


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       7.     Adjustment upon Changes in Capitalization, etc.

              (a)   In the event of any change in Issuer Common Stock by reason
of a stock  dividend,  stock  split,  split-up,  recapitalization,  combination,
exchange  of shares or  similar  transaction,  the type and  number of shares or
securities  subject to the  Option  and the  Purchase  Price  therefor  shall be
adjusted  appropriately,  and proper  provision  shall be made in the agreements
governing such  transaction  so that Holder shall receive,  upon exercise of the
Option,  the number and class of shares or other  securities  or  property  that
Holder would have  received in respect of Issuer  Common Stock if the Option had
been exercised  immediately prior to such event, or the record date therefor, as
applicable. If any additional shares of Issuer Common Stock are issued after the
date of this Agreement  (other than pursuant to an event  described in the first
sentence of this  Section  7(a)),  the number of shares of Issuer  Common  Stock
subject to the Option  shall be  adjusted  so that,  after  such  issuance,  it,
together  with any shares of Issuer  Common  Stock  previously  issued  pursuant
hereto,  equals 19.9% of the number of shares of Issuer Common Stock then issued
and  outstanding,  without  giving  effect to any  shares  subject  to or issued
pursuant to the Option.

              (b)   In the event that  Issuer  shall  enter  into an  agreement:
(i) to consolidate  with or merge into any person,  other than Grantee or one of
its  Subsidiaries,  and shall not be the continuing or surviving  corporation of
such consolidation or merger;  (ii) to permit any person,  other than Grantee or
one of its Subsidiaries, to merge into Issuer and Issuer shall be the continuing
or  surviving  corporation,  but,  in  connection  with  such  merger,  the then
outstanding shares of Issuer Common Stock shall be changed into or exchanged for
stock or other  securities  of Issuer  or any other  person or cash or any other
property or the outstanding  shares of Issuer Common Stock  immediately prior to
such merger shall after such merger  represent less than 50% of the  outstanding
shares and share equivalents of the merged company;  (iii) to permit any person,
other than Grantee or one of the Subsidiaries, to acquire all of the outstanding
shares of Issuer Common Stock pursuant to a statutory share exchange; or (iv) to
sell or otherwise transfer all or substantially all of its assets to any person,
other than Grantee or one of its Subsidiaries,  then, and in each such case, the
agreement  governing such transaction  shall make proper  provisions so that the
Option shall,  upon the  consummation of any such transaction and upon the terms
and conditions set forth herein,  be converted into, or exchanged for, an option
(the  "Substitute  Option"),  at the  election  of  Grantee,  of either  (x) the
Acquiring  Corporation  (as defined  below),  (y) any person that  controls  the
Acquiring Corporation,  or (z) in the case of a merger described in clause (ii),
the Issuer (in each case,  such  person  being  referred  to as the  "Substitute
Option Issuer").

              (c)   The Substitute Option shall have the same terms as the 
Option,  provided that, if the terms of the Substitute Option cannot,  for legal
reasons,  be the same as the Option,  such terms shall be as similar as possible
and in no event less advantageous to Grantee. The Substitute Option Issuer shall
also enter into an agreement with the then-holder or holders of the Substitute


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Option  in  substantially  the  same  form as this  Agreement,  which  shall  be
applicable to the Substitute Option.

              (d)   The Substitute  Option shall be exercisable for such number
of shares of the Substitute Common Stock (as hereinafter defined) as is equal to
the Assigned Value (as hereinafter  defined)  multiplied by the number of shares
of the Issuer  Common  Stock for which the Option was  theretofore  exercisable,
divided by the Average Price (as hereinafter defined). The exercise price of the
Substitute  Option per share of the  Substitute  Common  Stock (the  "Substitute
Purchase  Price")  shall then be equal to the  Purchase  Price  multiplied  by a
fraction  in which the  numerator  is the number of shares of the Issuer  Common
Stock for which the Option was  theretofore  exercisable  and the denominator is
the number of shares for which the Substitute Option is exercisable.

              (e)   The following terms have the meanings indicated:

              (i)   "Acquiring Corporation" shall mean the continuing or 
       surviving  corporation  of a  consolidation  or merger with Issuer (if
       other than Issuer), Issuer in a merger in which Issuer is the continuing 
       or surviving person, the corporation that shall acquire all of  the 
       outstanding shares of Issuer Common Stock pursuant to a  statutory share
       exchange,  the transferee of all or any  substantial part of the Issuer's
       assets (or the assets of its Subsidiaries).

              (ii)  "Substitute  Common Stock" shall mean  the common  stock 
      issued  by the  Substitute Option  Issuer upon exercise  of the Substitute
      Option.

              (iii) "Assigned Value" shall mean the highest of (x) the price per
       share of the  Issuer  Common  Stock at which a Tender  Offer or  Exchange
       Offer therefor has been made by any person (other than Grantee),  (y) the
       price  per  share of the  Issuer  Common  Stock to be paid by any  person
       (other than the Grantee)  pursuant to an agreement  with Issuer,  and (z)
       the highest  closing  sales price per share of Issuer Common Stock quoted
       on the Nasdaq  Stock  Market  within  the  six-month  period  immediately
       preceding the  agreement;  provided,  that in the event of a sale of less
       than all of Issuer's  assets,  the Assigned Value shall be the sum of the
       price paid in such sale for such assets and the current  market  value of
       the remaining  assets of Issuer as determined by a nationally  recognized
       investment banking firm selected by Grantee (or by a majority in interest
       of the  Grantees  if there  shall be more than one  Grantee  (a  "Grantee
       Majority")),  divided by the number of shares of the Issuer  Common Stock
       outstanding at the time of such sale. In the event that an exchange offer
       is made for the Issuer Common Stock or an agreement is entered into for a
       merger or  consolidation  involving  consideration  other than cash,  the
       value of the  securities or other  property  issuable or  deliverable  in
       exchange for the Issuer  Common Stock shall be determined by a nationally
       recognized  investment  banking  firm  mutually  selected  by Grantee and
       Issuer (or if applicable, Acquiring Corporation). (If there shall be more
       than  one  Grantee,  any  such  selection  shall  be  made  by a  Grantee
       Majority.)



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              (iv)  "Average  Price" shall mean the average  closing  price of a
       share  of the  Substitute  Common  Stock  for  the one  year  immediately
       preceding the consolidation,  merger, share exchange or sale in question,
       but in no event  higher  than the  closing  price  of the  shares  of the
       Substitute Common Stock on the day preceding such consolidation,  merger,
       share  exchange  or sale;  provided  that if Issuer is the  issuer of the
       Substitute  Option, the Average Price shall be computed with respect to a
       share of common stock issued by Issuer, the person merging into Issuer or
       by any company which controls or is controlled by such merger person,  as
       Grantee may elect.

              (f)   In no event pursuant to any of the foregoing  paragraphs 
shall the Substitute  Option be exercisable for more than 19.9% of the aggregate
of the shares of the Substitute  Common Stock  outstanding  prior to exercise of
the  Substitute  Option.  In the  event  that  the  Substitute  Option  would be
exercisable  for more than 19.9% of the  aggregate  of the shares of  Substitute
Common Stock but for this clause (f), the Substitute  Option Issuer shall make a
cash payment to Grantee  equal to the excess of (i) the value of the  Substitute
Option  without giving effect to the limitation in this clause (f) over (ii) the
value of the  Substitute  Option after giving  effect to the  limitation in this
clause  (f).  This  difference  in value  shall be  determined  by a  nationally
recognized investment banking firm selected by Grantee (or a Grantee Majority).

              (g)    Issuer shall not enter into any  transaction  described  in
subsection (b) of this Section 7 unless the Acquiring Corporation and any person
that controls the Acquiring Corporation assume in writing all the obligations of
Issuer  hereunder  and take all other  actions that may be necessary so that the
provisions of this Section 7 are given full force and effect (including, without
limitation,  any action that may be necessary  so that the shares of  Substitute
Common Stock are in no way  distinguishable  from or have lesser  economic value
than other shares of common stock issued by the Substitute Option Issuer).

              (h)   The provisions of  Sections  8, 9 and 10 shall  apply,  with
appropriate  adjustments,  to  any  securities  for  which  the  Option  becomes
exercisable  pursuant to this Section 7 and, as  applicable,  references in such
sections to "Issuer," "Option," "Purchase Price" and "Issuer Common Stock" shall
be deemed to be references to "Substitute Option Issuer,"  "Substitute  Option,"
"Substitute Purchase Price" and "Substitute Common Stock," respectively.

       8.     Registration Rights.

              (a)   Following termination of the Merger Agreement, Issuer shall,
subject to the conditions of subparagraph (c) below, if requested by any Holder,
including  Grantee  and  any  permitted   transferee   ("Selling  Holder"),   as
expeditiously  as possible  prepare and file a registration  statement under the
Securities Laws if necessary in order to permit the sale or other disposition of
any or all  shares of Issuer  Common  Stock or other  securities  that have been
acquired  by or are  issuable to Selling  Holder upon  exercise of the Option in
accordance  with the  intended  method  of sale or other  disposition  stated by
Holder in such request,  including,  without limitation,  a "shelf" registration
statement under Rule 415 under the Securities Act or any successor


                                       65





provision, and Issuer shall use its best efforts to qualify such shares or other
securities for sale under any applicable state securities laws.

              (b)   If Issuer at any  time  after  the  exercise  of the  Option
proposes to register any shares of Issuer Common Stock under the Securities Laws
in connection with an underwritten  public offering of such Issuer Common Stock,
Issuer will  promptly  give written  notice to Holder of its  intention to do so
and,  upon the written  request of Holder given within 30 days after  receipt of
any such  notice  (which  request  shall  specify the number of shares of Issuer
Common Stock  intended to be included in such  underwritten  public  offering by
Selling Holder),  Issuer will cause all such shares,  the holders of which shall
have  requested  participation  in such  registration,  to be so registered  and
included in such underwritten public offering;  provided,  that Issuer may elect
to cause any such shares not to be so registered (i) if the underwriters in good
faith object for a valid business reason,  or (ii) in the case of a registration
solely to implement a dividend reinvestment or similar plan, an employee benefit
plan  or  a  registration  filed  on  Form  S-4  or  any  successor  form,  or a
registration  filed on a form  which does not permit  registration  of  resales;
provided,  further,  that such election  pursuant to clause (i) may be made only
one time. If some but not all the shares of Issuer Common Stock, with respect to
which Issuer shall have  received  requests  for  registration  pursuant to this
subparagraph  (b), shall be excluded from such  registration,  Issuer shall make
appropriate  allocation of shares to be registered among Selling Holders and any
other person  (other than Issuer or any person  exercising  demand  registration
rights  in  connection  with such  registration)  who or which is  permitted  to
register   their  shares  of  Issuer  Common  Stock  in  connection   with  such
registration  pro rata in the proportion that the number of shares  requested to
be  registered  by each  Selling  Holder  bears to the  total  number  of shares
requested to be  registered  by all persons then  desiring to have Issuer Common
Stock registered for sale.

              (c)   Issuer shall  use  all  reasonable  efforts  to  cause  each
registration statement referred to in subparagraph (a) above to become effective
and to obtain  all  consents  or  waivers of other  parties  which are  required
therefor  and to keep such  registration  statement  effective,  provided,  that
Issuer  may delay  any  registration  of  Option  Shares  required  pursuant  to
subparagraph  (a) above for a period not exceeding 90 days provided Issuer shall
in good faith determine that any such  registration  would  adversely  affect an
offering or  contemplated  offering of other  securities  by Issuer,  and Issuer
shall not be  required to  register  Option  Shares  under the  Securities  Laws
pursuant to subparagraph (a) above:

                    (i)       prior to the earliest of (A) termination of  the
       Merger Agreement pursuant to Section 7.1 thereof, (B) failure to obtain 
       the requisite shareholder approval of the holders of Issuer Common  Stock
       pursuant to Section 5.1 of the Merger Agreement, and (C) a Purchase Event
       or a Preliminary Purchase Event;

                    (ii)      on more than two occasions;

                    (iii)     more than once during any calendar year;


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                    (iv)      within  90  days  after  the  effective  date of a
       registration  referred to in subparagraph (b) above pursuant to which the
       Selling Holders  concerned were afforded the opportunity to register such
       shares  under the  Securities  Laws and such  shares were  registered  as
       requested; and

                    (v)       unless a request therefor is made to Issuer by 
       Selling Holders holding at least 25% or more of the aggregate  number of 
       Options Shares then outstanding.

                    In addition to the  foregoing,  Issuer shall not be required
to maintain the effectiveness of any registration statement after the expiration
of nine months from the effective date of such  registration  statement.  Issuer
shall use all reasonable efforts to make any filings,  and take all steps, under
all applicable  state securities laws to the extent necessary to permit the sale
or other  disposition of the Option Shares so registered in accordance  with the
intended method of distribution for such shares, provided, that Issuer shall not
be required to consent to general  jurisdiction or qualify to do business in any
state where it is not otherwise  required to so consent to such  jurisdiction or
to so qualify to do business.

              (d)   Except where applicable  state law prohibits such  payments,
Issuer will pay all expenses  (including without  limitation  registration fees,
qualification  fees, blue sky fees and expenses (including the fees and expenses
of counsel),  accounting expenses, legal expenses, including reasonable fees and
expenses of one counsel to the Holders whose Option Shares are being registered,
printing expenses, expenses of underwriters, excluding discounts and commissions
but including  liability  insurance if Issuer so desires or the  underwriters so
require,  and the reasonable fees and expenses of any necessary special experts)
in connection with each  registration  pursuant to subparagraph (a) or (b) above
(including  the related  offerings  and sales by Selling  Holders) and all other
qualifications,  notifications or exemptions pursuant to subparagraph (a) or (b)
above.  Underwriting discounts and commissions relating to Option Shares and any
other  expenses  incurred by such Selling  Holders in  connection  with any such
registration shall be borne by such Selling Holders.

              (e)   In connection with any registration under subparagraph (a) 
or (b) above Issuer hereby indemnifies the Selling Holders, and each underwriter
thereof,  including each person, if any, who controls such holder or underwriter
within the meaning of Section 15 of the  Securities  Act,  against all expenses,
losses,  claims,  damages and  liabilities  caused by any untrue  statement of a
material  fact  contained  in  any  registration   statement  or  prospectus  or
notification  or offering  circular  (including  any  amendments or  supplements
thereto)  or any  preliminary  prospectus,  or caused by any  omission  to state
therein a material fact  required to be stated  therein or necessary to make the
statements  therein not  misleading,  except insofar as such  expenses,  losses,
claims,  damages  or  liabilities  of such  indemnified  party are caused by any
untrue  statement or alleged untrue statement that was included by Issuer in any
such  registration  statement or prospectus or notification or offering circular
(including  any  amendments  or  supplements  thereto) in  reliance  upon and in
conformity with,  information furnished in writing to Issuer by such indemnified
party


                                       67





expressly for use therein, and Issuer and each officer, director and controlling
person  of  Issuer  shall be  indemnified  by such  Selling  Holder,  or by such
underwriter,  as the case may be, for all such expenses, losses, claims, damages
and liabilities  caused by any untrue,  or alleged untrue,  statement,  that was
included  by  Issuer  in  any  such  registration  statement  or  prospectus  or
notification  or offering  circular  (including  any  amendments or  supplements
thereto) in reliance  upon,  and in conformity  with,  information  furnished in
writing  to  Issuer  by such  holder  or such  underwriter,  as the case may be,
expressly for such use.

                    Promptly  upon  receipt  by a party  indemnified  under this
subparagraph  (e) of notice  of the  commencement  of any  action  against  such
indemnified  party in respect of which indemnity or reimbursement  may be sought
against any  indemnifying  party under this  subparagraph  (e), such indemnified
party shall notify the indemnifying party in writing of the commencement of such
action, but the failure so to notify the indemnifying party shall not relieve it
of any liability which it may otherwise have to any indemnified party under this
subparagraph  (e). In case notice of  commencement  of any such action  shall be
given to the indemnifying party as above provided,  the indemnifying party shall
be entitled to participate  in and, to the extent it may wish,  jointly with any
other  indemnifying  party  similarly  notified,  to assume the  defense of such
action at its own expense,  with counsel chosen by it and  satisfactory  to such
indemnified party. The indemnified party shall have the right to employ separate
counsel in any such action and participate in the defense thereof,  but the fees
and  expenses of such counsel  (other than  reasonable  costs of  investigation)
shall be paid by the indemnified party unless (i) the indemnifying  party agrees
to pay them,  (ii) the  indemnifying  party  fails to assume the defense of such
action  with  counsel  satisfactory  to the  indemnified  party,  or  (iii)  the
indemnified  party has been advised by counsel  that one or more legal  defenses
may be available to the indemnifying  party that may be contrary to the interest
of the indemnified party, in which case the indemnifying party shall be entitled
to assume the defense of such action notwithstanding its obligation to bear fees
and  expenses of such  counsel.  No  indemnifying  party shall be liable for any
settlement  entered  into  without  its  consent,   which  consent  may  not  be
unreasonably withheld.

                    If the indemnification provided for in this subparagraph (e)
is unavailable to a party otherwise entitled to be indemnified in respect of any
expenses,  losses,  claims,  damages or liabilities referred to herein, then the
indemnifying  party, in lieu of indemnifying such party otherwise entitled to be
indemnified,  shall contribute to the amount paid or payable by such party to be
indemnified as a result of such expenses, losses, claims, damages or liabilities
in such proportion as is appropriate to reflect the relative  benefits  received
by Issuer,  all Selling  Holders and the  underwriters  from the offering of the
securities  and also the relative fault of Issuer,  all Selling  Holders and the
underwriters  in connection  with the statements or omissions  which resulted in
such expenses,  losses,  claims,  damages or  liabilities,  as well as any other
relevant  equitable  considerations.  The amount paid or payable by a party as a
result of the expenses,  losses,  claims,  damages and  liabilities  referred to
above shall be deemed to include any legal or other fees or expenses  reasonably
incurred by such party in connection with  investigating or defending any action
or claim; provided, that in no case shall any Selling Holder be responsible,  in
the  aggregate,   for  any  amount  in  excess  of  the  net  offering  proceeds
attributable to its Option


                                       68





Shares   included   in  the   offering.   No   person   guilty   of   fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be  entitled  to  contribution  from any person who was not guilty of such
fraudulent misrepresentation. Any obligation by any holder to indemnify shall be
several and not joint with other holders.

                    In connection with any registration pursuant to subparagraph
(a) or (b) above,  Issuer and each Selling  Holder  (other than  Grantee)  shall
enter  into an  agreement  containing  the  indemnification  provisions  of this
subparagraph (e).

              (f)   Issuer shall comply with all reporting requirements and will
do all such other things as may be necessary to permit the  expeditious  sale at
any time of any  Option  Shares by Holder in  accordance  with and to the extent
permitted by any rule or regulation  promulgated by the Commission  from time to
time,  including,  without  limitation,  Rules 144 and 144A. Issuer shall at its
expense  provide Holder with any  information  necessary in connection  with the
completion and filing of any reports or forms required to be filed by them under
the Securities  Laws, or required  pursuant to any state  securities laws or the
rules of any stock exchange.

              (g)   Issuer  will  pay all stamp  taxes  in  connection  with the
issuance and the sale of the Option Shares and in  connection  with the exercise
of the Option,  and will save Holder  harmless,  without  limitation as to time,
against any and all liabilities, with respect to all such taxes.

       9.     Quotation;  Listing. If Issuer Common Stock or any other 
securities to be acquired upon  exercise of the Option are then  authorized  for
quotation  or trading or  listing  on the  Nasdaq  National  Market or any other
securities  exchange  or  any  automated   quotations  system  maintained  by  a
self-regulatory  organization,  Issuer will  promptly  file an  application,  if
required,  to authorize for quotation or trading or listing the shares of Issuer
Common Stock or other  securities  to be acquired upon exercise of the Option on
the Nasdaq  National  Market or any other  securities  exchange or any automated
quotations system maintained by a self-regulatory  organization and will use its
best efforts to obtain  approval,  if required,  of such quotation or listing as
soon as practicable.

       10.     Division of Option. This Agreement (and the Option granted
hereby)  is  exchangeable,  without  expense,  at the  option  of  Holder,  upon
presentation  and surrender of this Agreement at the principal  office of Issuer
for other Agreements providing for Options of different  denominations entitling
the holder  thereof to  purchase in the  aggregate  the same number of shares of
Issuer Common Stock purchasable hereunder. The terms "Agreement" and "Option" as
used herein  include  any other  Agreements  and related  Options for which this
Agreement  (and the Option  granted  hereby) may be  exchanged.  Upon receipt by
Issuer of evidence reasonably satisfactory to it of the loss, theft, destruction
or mutilation of this Agreement, and (in the case of loss, theft or destruction)
of reasonably satisfactory indemnification,  and upon surrender and cancellation
of this Agreement, if mutilated, Issuer will execute and deliver a new Agreement
of like tenor and date.  Any such new  Agreement  executed and  delivered  shall
constitute an

                                       69





additional  contractual  obligation  on the part of  Issuer,  whether or not the
Agreement  so  lost,  stolen,  destroyed  or  mutilated  shall  at any  time  be
enforceable by anyone.

       11.    Miscellaneous.

              (a)   Expenses.  Except as otherwise  provided herein, each of the
parties  hereto shall bear and pay all costs and  expenses  incurred by it or on
its behalf in connection with the transactions contemplated hereunder, including
fees  and  expenses  of  its  own  financial  consultants,  investment  bankers,
accountants and counsel.

              (b)   Waiver and Amendment.  Any provision of this Agreement may 
be waived at any time by the party  that is  entitled  to the  benefits  of such
provision. This Agreement may not be modified,  amended, altered or supplemented
except upon the  execution and delivery of a written  agreement  executed by the
parties hereto.

              (c)   Entire Agreement; No Third-Party Beneficiary;  Severability.
This Agreement,  together with the Merger  Agreement and the other documents and
instruments  referred  to herein and  therein,  between  Grantee  and Issuer (a)
constitutes  the  entire  agreement  and  supersedes  all prior  agreements  and
understandings,  both written and oral,  between the parties with respect to the
subject  matter  hereof and (b) is not  intended to confer upon any person other
than the parties hereto (other than any  transferees of the Option Shares or any
permitted  transferee of this Agreement pursuant to Section 11(h)) any rights or
remedies  hereunder.  If any term,  provision,  covenant or  restriction of this
Agreement  is held by a court of  competent  jurisdiction  or a federal or state
governmental  or  regulatory  agency  or  authority  to  be  invalid,   void  or
unenforceable,   the   remainder  of  the  terms,   provisions,   covenants  and
restrictions  of this Agreement  shall remain in full force and effect and shall
in no way be affected,  impaired or invalidated. If for any reason such court or
regulatory  agency determines that the Option does not permit Holder to acquire,
or does not require  Issuer to  repurchase,  the full number of shares of Issuer
Common  Stock as provided in Sections 3 and 8 (as  adjusted  pursuant to Section
7), it is the  express  intention  of Issuer to allow  Holder to  acquire  or to
require Issuer to repurchase  such lesser number of shares as may be permissible
without any amendment or modification hereof.

              (d)   Governing  Law.  This Agreement  shall  be  governed  by and
construed  and  enforced  in  accordance  with  the  laws of the  State of North
Carolina without regard to any applicable  conflicts of law rules, except to the
extent that the federal laws of the United States shall govern.

              (e)   Descriptive Headings.  The descriptive headings contained 
herein are for convenience of reference only and shall not affect in any way the
meaning or interpretation of this Agreement.

              (f)   Notices.  All notices and other communications hereunder 
shall  be in  writing  and  shall  be  deemed  given  if  delivered  personally,
telecopied (with confirmation) or mailed by

                                       70





registered or certified  mail (return  receipt  requested) to the parties at the
addresses  set forth in the Merger  Agreement  (or at such other  address  for a
party as shall be specified by like notice).

              (g)   Counterparts.  This Agreement and any amendments hereto may 
be executed in two  counterparts,  each of which shall be considered one and the
same  agreement  and shall become  effective  when both  counterparts  have been
signed,   it  being  understood  that  both  parties  need  not  sign  the  same
counterpart.

              (h)   Assignment.  Neither  this Agreement  nor any of the rights,
interests or obligations  hereunder or under the Option shall be assigned by any
of the parties  hereto  (whether by operation of law or  otherwise)  without the
prior  written  consent of the other party,  except that Grantee may assign this
Agreement  to a wholly  owned  subsidiary  of Grantee and Grantee may assign its
rights  hereunder in whole or in part after the occurrence of a Purchase  Event.
Subject to the preceding  sentence,  this Agreement shall be binding upon, inure
to the  benefit  of and be  enforceable  by the  parties  and  their  respective
successors and assigns.

              (i)   Further Assurances. In the event of any exercise of the 
Option by  Holder,  Issuer  and  Holder  shall  execute  and  deliver  all other
documents  and  instruments  and take all other  action  that may be  reasonably
necessary in order to consummate the transactions provided for by such exercise.

              (j)   Specific  Performance.  The  parties hereto  agree that this
Agreement  may  be  enforced  by  either  party  through  specific  performance,
injunctive  relief and other  equitable  relief.  Both parties  further agree to
waive any requirement for the securing or posting of any bond in connection with
the obtaining of any such  equitable  relief and that this  provision is without
prejudice to any other  rights that the parties  hereto may have for any failure
to perform this Agreement.


                                       71




       IN WITNESS  WHEREOF,  Issuer and Grantee  have  caused this Stock  Option
Agreement to be signed by their respective  officers  thereunto duly authorized,
all as of the day and year first written above.

                                      VIRGINIA FIRST FINANCIAL CORPORATION



                                      By: ____________________________
                                             Name: ___________________
                                             Title:   ________________


                                      SOUTHERN NATIONAL CORPORATION



                                      By: ____________________________
                                             Name: ___________________
                                             Title:   ________________



                                       72