STOCK OPTION AGREEMENT


     THIS STOCK OPTION AGREEMENT ("Option Agreement") dated as of July 16, 1996
between First Bancshares, Inc., an Alabama corporation ("FBI"), and United
Security Bancshares, Inc., an Alabama corporation ("USB"), .

                                WITNESSETH:

     WHEREAS, the Boards of Directors of the parties hereto have approved a
letter of intent to merge dated as the date hereof, and plan to enter into a
definitive contract by August 19, 1996, ("Agreement"), providing for certain
transactions pursuant to which USB and FBI will merge, and their subsidiary 
banks will merge (the "Plan of Merger"); and

     WHEREAS, as a condition to and as consideration for USB to enter into the
Agreement and to induce such entry, FBI has agreed to grant to USB the option 
set forth herein to purchase authorized but unissued shares of FBI Common Stock;

     NOW, THEREFORE, in consideration of the premises herein contained, the
parties agree as follows: 

1.   GRANT OF OPTION.  Subject to the terms and conditions set forth herein, FBI
hereby grants to USB an option ("Option") to purchase up to 19,200 shares of FBI
Common Stock, at a price of $67.00 per share, payable in cash as provided in
Section 3 hereof. 

2.   EXERCISE OF OPTION.  (a)  Unless USB shall have breached in any material
respect any covenant or representation contained in the Agreement and such 
breach has not been cured, USB may exercise the Option, in whole or part, at any
time or from time to time if, and only if, a Purchase Event (as defined 
below) shall have occurred and be continuing. The Option shall terminate and 
be of no further force and effect:

          (i)  on the effective date of the Merger; or

          (ii)      upon failure to execute the Agreement by August 19, 1996,
     unless such date is mutually extended; or

          (iii)     upon termination of the Agreement in accordance with its
     provisions, other than a termination resulting from:

               (A)  a willful or intentional breach by FBI of any Specified
          Covenant (as defined below); or 

               (B) a failure of FBI shareholders, following the occurrence of
          a Purchase Event, to approve the Merger by the vote required under
          applicable law or under the FBI Articles of Incorporation; or

          (iv)      two months after:

                (A)      termination of the Agreement due to a willful breach by
          FBI of any Specified Covenant; or 

               (B)  failure of FBI shareholders, following the occurrence of
          a Purchase Event, to approve the Merger by the vote required under
          applicable law or under the FBI Articles of Incorporation;

and, provided further, that any such exercise shall be subject to compliance 
with applicable provisions of law. 

     (b)  As used herein, a "Purchase Event" shall mean any of the following
events or transactions occurring after the date hereof: 

          (i)  FBI, without having received the prior written consent of USB,
     shall have entered into any agreement with any person or entity to merge
     or consolidate, or enter into any similar transaction, except as
     contemplated in the Agreement, whereby (A) such entity would purchase,
     lease or otherwise acquire all or substantially all of the assets of FBI,
     or (B) such entity would purchase or otherwise acquire (including by way
     of merger, consolidation, share exchange or any similar transaction)
     securities representing 10% or more of the voting power of FBI;

          (ii) any person shall have acquired beneficial ownership or the
     right to acquire beneficial ownership of 15% or more of the outstanding
     shares of FBI Common Stock after the date hereof (the term "beneficial
     ownership; for purposes of this Option Agreement having the meaning
     assigned thereto in Section 13(d) of the Securities Exchange Act of 1934
     (the "Exchange Act") and the regulations promulgated thereunder); 

          (iii)     any person shall have made a bona fide proposal to FBI by
     public announcement or written communication that is or becomes the
     subject to public disclosure to acquire FBI by merger, consolidation,
     purchase of all or substantially all of its assets or any other similar
     transaction, and following such bona fide proposal the shareholders of FBI
     vote not to adopt the Plan of Merger; or 

          (iv) FBI shall have willfully breached any Specified Covenant
     following a bona fide proposal by a third party to FBI for a merger,
     consolidation, purchase of all or substantially all of its assets or any
     other similar transaction, which breach would entitle USB to terminate the
     Agreement (without regard to the cure periods provided for therein) and
     such breach shall not have been cured prior to the Notice Date (as defined
     below). 

     If more than one of the transactions giving rise to a Purchase Event under
this Section 2(b) is undertaken or effected, then all such transactions shall
give rise only to one Purchase Event, which Purchase Event shall be deemed
continuing for all purposes hereunder until all such transactions are abandoned.
As used in this Option Agreement, "person" shall have the meanings specified in
Sections 3(a)(9) and 13(d)(3) of the Exchange Act. 

     (c)  As used herein, a "Specified Covenant" shall mean any of the
covenants included in the Agreement that are to be met or satisfied by FBI prior
to or in connection with the transactions contemplated therein.

     (d)  In the event USB wishes to exercise the Option, it shall send to FBI
a written notice (the date of which being herein referred to as "Notice Date")
specifying (i) the total number of shares it will purchase pursuant to such
exercise and (ii) a place and date not earlier than three business days nor 
later than 60 business days from the Notice Date for the closing of such 
purchase ("Closing Date"); provided, that if prior notification to or 
approval of any federal or state regulatory agency is required in connection 
with such purchase, USB shall promptly file the required notice or 
application for approval and the Closing Date shall fall on the soonest 
practicable date following such notification or approval. 

3.   PAYMENT AND DELIVERY OF CERTIFICATES.  (a)  At the closing, USB shall pay
to FBI the aggregate purchase price for the shares of FBI Common Stock purchased
pursuant to the exercise of the Option in immediately available funds by a wire
transfer to a bank account designated by FBI.

     (b)  At such closing, simultaneously with the delivery of funds as
provided in subsection (a), FBI shall deliver to USB a certificate or
certificates representing the number of shares of FBI Common Stock purchased by
USB, which such certificate or certificates may be inscribed with a legend
referencing restrictions on transfer necessary or desirable to assure compliance
with applicable laws. 

4.   REPRESENTATIONS.  FBI hereby represents, warrants and covenants to USB as
follows: 

     (a)  FBI shall at all times maintain sufficient authorized but unissued
shares of FBI Common Stock so that the Option may be exercised without
authorization of additional shares of FBI Common Stock. 

     (b)  The shares to be issued upon due exercise, in whole or in part, of
the Option, when paid for as provided herein, will be duly authorized, validly
issued, fully paid and nonassessable. 

5.   ADJUSTMENT UPON CHANGES IN CAPITALIZATION.  In the event of any change in
FBI Common Stock by reason of stock dividends, stock splits, split-ups, mergers,
recapitalization, combinations, exchanges of shares or the like, the type and
number of shares subject to the Option, and the purchase price per share, as the
case may be, shall be adjusted appropriately.  In the event that any additional
shares of FBI Common Stock are issued or otherwise become outstanding after the
date of this Option Agreement (other than pursuant to this Option Agreement), 
the number of shares of FBI Common Stock subject to the Option shall be 
adjusted so that, after such issuance (again excluding shares issued pursuant
to this Option Agreement), it equals eight percent (8%) of the number of 
shares of FBI Common Stock then issued and outstanding.  Nothing contained in
this Section 5 shall be deemed to authorize FBI to breach any provision of 
the Agreement. 

6.   REGISTRATION RIGHTS.  FBI shall, if requested by USB, as expeditiously as
possible file a registration statement on a form of general use under any
applicable federal or state securities laws if necessary, in order to permit the
sale or other disposition of the shares of FBI Common Stock that have been
acquired upon exercise of the Option in accordance with the intended method of
sale or other disposition requested by USB.  USB shall provide information
reasonably requested by FBI for inclusion in any registration statement to be
filed hereunder.  FBI will use its best efforts to cause such registration
statement first to become effective and then to remain effective for such period
not in excess of 270 days from the day such registration statement first becomes
effective, as may be reasonably necessary to effect such sales or other
dispositions. 

7.   SEVERABILITY.  If any term, provision, covenant or restriction contained
in this Option Agreement is held by a court or a federal or state regulatory
agency of competent jurisdiction to be invalid, void or unenforceable, the
remainder of the terms, provisions and covenants and restrictions contained in
this Option 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 will not permit the holder to acquire the full
number of shares of FBI Common Stock provided in Section 2 hereof (as adjusted
pursuant to Section 5 hereof), it is the express intention of FBI to allow the
holder to acquire or to require FBI to repurchase such lesser number of shares
as may be permissible, without any amendment or modification hereof. 

8.   MISCELLANEOUS.  (a)  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)  Except as otherwise expressly provided herein, this Option Agreement
contains the entire agreement between the parties with respect to the
transactions contemplated hereunder and supersedes all prior arrangements or
understandings with respect thereto, written or oral.  The terms and conditions
of this Option Agreement shall inure to the benefit of and be binding upon the
parties hereto and their respective successors and permitted assigns.  Nothing
is this Option Agreement, expressed or implied, is intended to confer upon any
party, other than the parties hereto, and their respective successors. 

     (c)  Neither of the parties hereto may assign any of its rights or
obligations under this Option Agreement or the Option created hereunder to any
other person, without the express written consent of the other party, except 
that in the event a Purchase Event shall have occurred and be continuing, USB 
may assign, in whole or in part, its rights and obligations hereunder. 

     (d)  All notices or other communications which are required or permitted
hereunder shall be in writing and sufficient if delivered in the manner and to
the addresses provided. 

     (e)  The parties agree that damages would be an inadequate remedy for a
breach of the provisions of this Option Agreement by either party hereto and 
that this Option Agreement may be enforced by either party hereto through 
injunctive or other equitable relief. 

     (f)  This Option Agreement shall be governed by and construed in
accordance with the laws of the State of Alabama applicable to agreements made
and entirely to be performed within such state and such federal laws as may be
applicable. 



                              FIRST BANCSHARES, INC.


                              By:  /s/ Fred L. Huggins                     

                                Its:   President & CEO                     




                              UNITED SECURITY BANCSHARES, INC.


                              By:  /s/ Jack M. Wainwright, III             

                                Its:   President & CEO