SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                    FORM 8-K


                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE

                         SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of Earliest Event Reported):        Commission File Number
         December 16, 1998                                      0-7674
                                                                ------


                        FIRST FINANCIAL BANKSHARES, INC.
                        --------------------------------
             (Exact Name of Registrant as Specified in its Charter)


       Texas                                                    75-0944023     
- -----------------------                                         ----------
(State of Incorporation)                                     (I.R.S. Employer
                                                             Identification No.)


                      400 Pine Street, Abilene, Texas 79601
                   (Address of Executive Offices and Zip Code)

                  Registrant's Telephone Number (915) 627-7155







ITEM 5.  Other Events.

         On December 16, 1998, First Financial Bankshares,  Inc. (the "Company")
commenced  consummation of the Stock Exchange Offer (the "Exchange  Offer") made
to the shareholders of Cleburne State Bank ("CSB"), pursuant to a Stock Exchange
Agreement and Plan of Reorganization (the "Exchange  Agreement") dated September
4, 1998,  between the Company and CSB. Pursuant to the Exchange  Agreement,  the
Company  offered to acquire from the  shareholders of CSB all (but not less than
90%) of the issued and  outstanding  shares of CSB common stock ("CSB Stock") in
exchange for shares of the common stock of the Company (the "Company's  Stock"),
with cash to be issued in lieu of any fractional  shares of the Company's  Stock
to which the shareholders of CSB would otherwise be entitled.  The shares of the
Company's  Stock issued in connection  with the Exchange  Offer were  registered
with the Securities and Exchange  Commission and the Registration  Statement was
declared  effective on November 6, 1998. Prior to commencing the Exchange Offer,
the Company and CSB had obtained the approval of the Federal  Reserve  Board and
other regulatory authorities for the Company to acquire CSB.

         Pursuant to the terms of the  Exchange  Agreement,  and as set forth in
the  Prospectus  delivered to the  shareholders  of CSB, the Company  offered to
exchange  2.1073  shares  of the  Company's  Stock  for each  share of CSB Stock
tendered by the  shareholders of CSB, and to pay cash for any fractional  shares
of the  Company's  Stock to which the  shareholders  of CSB would  otherwise  be
entitled on the basis of $33.18 per share.  Consummation  of the Exchange  Offer
required that at least 90% of the issued and outstanding  shares of CSB Stock be
tendered  for  exchange  and that  certain  other  conditions  precedent  to the
consummation  of the  transaction  as set  forth in the  Exchange  Agreement  be
satisfied.  Following December 9, 1998, the Company was notified by the Transfer
Agent named in the Exchange  Agreement  that the Transfer Agent had received for
exchange stock  certificates  for 99.8% of the issued and outstanding  shares of
CSB Stock. On December 16, 1998, upon  satisfaction of the remaining  conditions
precedent  to  consummation  of the  transaction,  the  Company  instructed  the
Transfer Agent to commence  mailing  certificates  for the Company's  Stock (and
checks in payment for any fractional  shares of such stock) to the  shareholders
of CSB who had tendered their shares of CSB Stock. The total  consideration paid
by the  Company  for the  shares  of CSB  Stock  tendered  in  exchange  for the
Company's Stock was  $14,823,000,  including the cash paid in lieu of fractional
shares of the Company's  Stock.  The funds for payment by the Company of cash in
lieu of issuing  fractional  shares of its common  stock  were  provided  by the
Company out of its own cash reserves.

         CSB is a state banking  association  originally  chartered in 1980. CSB
operates two  full-service  locations,  one in  Cleburne,  Texas and a branch in
nearby Alvarado, Texas, which locations are within 25 miles of Fort Worth, Texas
and should be considered part of the Fort Worth banking  market.  CSB provides a
full range of both commercial and consumer  banking  services,  including loans,
checking  accounts,  savings  programs,  safe  deposit  facilities,   access  to
automated  teller machines,  and credit card programs.  CSB does not offer trust
services.  As of November  30, 1998,  CSB had assets  totaling  $85,700,000  and
shareholders' equity of $7,278,000.

         Following  consummation of the Exchange  Offer, it is anticipated  that
CSB would merge into the Company's  affiliate,  First  National Bank in Cleburne
during the first  quarter of 1999,  subject to complying  with federal and state
regulatory  requirements  for the merger of a state banking  association  into a
national banking association.  First National Bank in Cleburne, has total assets
of  approximately  $103,000,000  and operates  locations in Cleburne,  Texas and
Burleson, Texas.





                                   SIGNATURES
                                   ----------


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this Report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                         FIRST FINANCIAL BANKSHARES, INC.
                                         (Registrant)



DATE:  December  16 , 1998               By: /S/Curtis R. Harvey
                                             -------------------------
                                             CURTIS R. HARVEY
                                             Executive Vice President and
                                             Chief Financial Officer