UNITED STATES
                       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):    January 19, 2006


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


         Texas                         0-7674                     75-0944023
----------------------------    ---------------------        ------------------
(State or other Jurisdiction    (Commission File No.)          (IRS Employer
  of Incorporation)                                          Identification No.)


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

                  Registrant's Telephone Number (325) 627-7155


Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
    230.425)
[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)
[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2 (b))
[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))



ITEM 2.02         Results of Operations and Financial Condition

     Attached  as an exhibit to this Form 8-K is the  earnings  release  for the
quarter ended December 31, 2005 of First Financial Bankshares, Inc.


                                   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:  February 6, 2006           By:      /S/ F. Scott Dueser
                                           -------------------------------------
                                           F. SCOTT DUESER
                                           President and Chief Executive Officer



                                                                         EXHIBIT

For immediate release                                   For More Information:
                                                        J. Bruce Hildebrand,
                                                        Executive Vice President
                                                        325.627.7155

                      FIRST FINANCIAL BANKSHARES ANNOUNCES
                        FOURTH QUARTER EARNINGS RESULTS;
                   19th CONSECUTIVE YEAR OF INCREASED EARNINGS

ABILENE,  Texas,  January  19, 2006 - First  Financial  Bankshares,  Inc.  today
reported  earnings  for the  fourth  quarter  of 2005 of $10.58  million,  a 5.2
percent  increase  compared  with $10.06  million in the same quarter last year.
Basic  earnings per share were $0.51 compared with $0.49 in the same period last
year.

For the fourth  quarter,  net interest  income  increased 12.9 percent to $24.79
million  compared with $21.96  million in the same quarter last year,  primarily
due to an increase in  interest-earning  assets from the acquisition in February
2005 of The Peoples State Bank in Clyde and the  acquisition in December 2005 of
The First National Bank of  Bridgeport.  The net interest  margin,  on a taxable
equivalent  basis, was 4.43 percent for the fourth quarter of 2005 compared with
4.46  percent in the same period a year ago.  This  decrease in the net interest
margin  was due  primarily  to the  flattening  yield  curve  between  short and
long-term  interest rates, which has put pressure on margins in recent quarters.
The provision for loan losses was $269,000 in the fourth  quarter of 2005,  down
from $614,000 in the same quarter last year.

Noninterest  income in the fourth quarter increased 2.6 percent to $10.0 million
from $9.7 million in the same quarter a year earlier.  Trust fees increased 12.3
percent to $1.9  million  compared  with $1.7  million in the fourth  quarter of
2004.  Revenue from service fees  increased  nominally to $5.5 million  compared
with $5.4  million a year ago,  due to a plateau  in the usage of the  overdraft
privilege  product  and the  impact  of rising  rates on  earnings  credits  for
commercial accounts.

Noninterest  expense  increased  15.3  percent in the fourth  quarter of 2005 to
$19.5 million from $16.9 million in the fourth  quarter last year.  The increase
was due  primarily  to  additional  salary,  employee  benefits  and  facilities
expenses  resulting from the  acquisition of the Clyde and Bridgeport  banks and
from the opening of five bank branches in Willow Park, Midlothian,  Granbury and
two in  Abilene.  During the 2005 fourth  quarter,  the  Company  also  incurred
$291,000  in  conversion  costs  related  to  the  Bridgeport  acquisition.  The
Company's efficiency ratio in the fourth quarter stood at 54.30 percent compared
with 51.42 percent in the same quarter a year ago.  First  Financial  expects to
realize better  efficiencies as the Company brings its newly acquired banks into
its template and as newly opened branches become profitable.

First  Financial  Bankshares  reported  its 19th  consecutive  year of increased
earnings.  For the year,  net income rose 12.4  percent to $44.02  million  from
$39.17 million in 2004. Excluding PULSE proceeds of $3.9 million received during
the first,  second and third quarters of 2005, net income for 2005 increased 5.9
percent to $41.49 million.  Basic earnings per share rose 12.1 percent to $2.13,
compared with $1.90 in 2004.  Excluding the PULSE gain, basic earnings per share
for 2005 were $2.00, an increase of 5.3 percent.  Net interest income  increased



13.5  percent  in 2005 to $95.2  million  from  $83.9  million  last  year.  The
provision  for loan losses was $1.32  million for the year,  compared with $1.63
million a year ago.

"We  are  pleased  to  report  to our  shareholders  another  year  of  earnings
increases,  despite the short-term  negative impact of our recent growth and the
flattening  yield  curve,  which put  pressure on our net  interest  margins and
impacted our  bottom-line  results,"  said F. Scott Dueser,  President and Chief
Executive Officer. "This was a year of strong growth for First Financial,  as we
added locations both through acquisitions and new branches.  We feel our Company
has never been better  positioned in so many  attractive  Texas  markets,  which
bodes well for our long-term future."

During the fourth  quarter,  First  Financial  completed its  acquisition of The
First  National Bank of Bridgeport  and combined it with First  Financial  Bank,
N.A., Southlake,  to create a bank with assets of $273 million serving customers
in northern  Tarrant and Wise  Counties.  In addition,  the Company opened a new
bank branch in Granbury.

As of December  31, 2005,  consolidated  assets for the Company  totaled  $2.734
billion compared with $2.315 billion a year ago. Loans increased 10.7 percent to
$1.289 billion at year end,  compared with loans of $1.164 billion at the end of
2004. Total deposits rose 18.7 percent as of December 31, 2005 to $2.366 billion
from  $1.994  billion  a year  earlier.  The  acquisition  of banks in Clyde and
Bridgeport accounted for $122.9 million of the loan growth and $245.9 million of
the deposit growth.  Shareholders'  equity rose to $276.3 million as of December
31, 2005, compared with $265.5 million the prior year.

Headquartered  in Abilene,  Texas,  First  Financial  Bankshares  is a financial
holding  company that operates ten separately  chartered banks with 44 locations
in Texas, a trust company and a technology operating company. These subsidiaries
are First Financial Bank, N.A., Abilene,  Clyde and Moran; First Financial Bank,
N.A.,  Eastland,  Ranger and Rising Star; First Financial Bank, N.A.,  Cleburne,
Burleson, Alvarado and Midlothian;  Hereford State Bank, Hereford; City National
Bank, Mineral Wells; San Angelo National Bank, San Angelo; First Financial Bank,
N.A.,  Southlake,  Trophy  Club,  Keller,  Bridgeport,  Decatur and Boyd;  First
Financial Bank, N.A., Stephenville, Granbury and Glen Rose; First National Bank,
Sweetwater, Roby and Trent; Weatherford National Bank, Weatherford,  Willow Park
and Aledo;  First Financial Trust & Asset  Management  Company,  N.A.; and First
Technology Services, Inc.

The Company is listed on The Nasdaq Stock Market under the trading  symbol FFIN.
For more information about First Financial Bankshares, please visit our Web site
at http://www.ffin.com.


                                      *****

Certain   statements   contained  herein  may  be  considered   "forward-looking
statements" as defined in the Private Securities  Litigation Reform Act of 1995.
These statements are based upon the belief of the Company's management,  as well
as  assumptions  made beyond  information  currently  available to the Company's
management,  and may be, but not  necessarily  are,  identified by such words as
"expect", "plan",  "anticipate",  "target",  "forecast" and "goal". Because such
"forward-looking  statements"  are  subject to risks and  uncertainties,  actual
results  may  differ   materially  from  those  expressed  or  implied  by  such
forward-looking  statements.  Factors that could cause actual  results to differ
materially  from the  Company's  expectations  include  competition  from  other
financial  institutions  and  financial  holding  companies;  the effects of and
changes in trade, monetary and fiscal policies and laws, including interest rate
policies  of the  Federal  Reserve  Board;  changes  in the  demand  for  loans;
fluctuations in value of collateral and loan reserves; inflation, interest rate,
market and monetary  fluctuations;  changes in consumer spending,  borrowing and
savings habits;  and  acquisitions and integration of acquired  businesses,  and
similar variables.  Other key risks are described in the Company's reports filed
with the  Securities  and  Exchange  Commission,  which  may be  obtained  under
"Investor  Relations-Documents/Filings"  on the Company's Web site or by writing
or calling the Company at 325.627.7155.  Except as otherwise stated in this news
announcement,  the Company does not undertake any obligation to update  publicly
or revise any  forward-looking  statements  because of new  information,  future
events or otherwise.



                        FIRST FINANCIAL BANKSHARES, INC.
                   CONSOLIDATED FINANCIAL SUMMARY (UNAUDITED)
                 (In thousands, except share and per share data)




                                                                                                            December 31,
                                                                                                ---------------------------------
                                                                                                       2005              2004
                                                                                                ----------------   --------------
                                                                                                             
ASSETS:
Cash and due from banks                                                                         $        130,359   $       94,998
Fed funds sold                                                                                           120,950           99,750
Investment securities                                                                                  1,046,121          854,334
Loans                                                                                                  1,288,604        1,164,223
     Allowance for loan losses                                                                           (14,719)         (13,837)
                                                                                                ----------------   --------------
Net loans                                                                                              1,273,885        1,150,386
Premises and equipment                                                                                    60,093           49,740
Goodwill                                                                                                  62,317           39,240
Other intangible assets                                                                                    6,010            1,306
Other assets                                                                                              34,092           25,470
                                                                                                ----------------   --------------
     Total assets                                                                               $      2,733,827   $    2,315,224
                                                                                                ================   ==============

LIABILITIES AND SHAREHOLDERS'  EQUITY:
Noninterest-bearing deposits                                                                    $        623,156   $      512,009
Interest-bearing deposits                                                                              1,743,121        1,482,303
                                                                                                ----------------   --------------
     Total deposits                                                                                    2,366,277        1,994,312
Short-term borrowings                                                                                     74,239           35,691
Other liabilities                                                                                         17,035           19,675
Shareholders' equity                                                                                     276,276          265,546
                                                                                                ----------------   --------------
     Total liabilities and shareholders' equity                                                 $      2,733,827   $    2,315,224
                                                                                                ================   ==============




                                                                      Three Months Ended                      Year Ended
                                                                         December 31,                        December 31,
                                                             --------------------------------   ---------------------------------
INCOME STATEMENTS                                                  2005              2004              2005              2004
                                                             --------------   ---------------   ----------------   --------------
                                                                                                       
Interest income                                              $       33,811   $        26,662   $        123,944   $       99,973
Interest expense                                                      9,023             4,699             28,757           16,077
                                                             --------------   ---------------   ----------------   --------------
Net interest income                                                  24,788            21,963             95,187           83,896
Provision for loan losses                                               269               614              1,320            1,633
                                                             --------------   ---------------   ----------------   --------------
Net interest income after
     provision for loan losses                                       24,519            21,349             93,867           82,263
Noninterest income                                                    9,966             9,716             44,180           38,823
Noninterest expense                                                  19,521            16,929             75,649           66,128
                                                             --------------   ---------------   ----------------   --------------
     Net income before income taxes                                  14,964            14,136             62,398           54,958
Income tax expense                                                    4,383             4,078             18,375           15,787
                                                             --------------   ---------------   ----------------   --------------
     Net income                                              $       10,581   $        10,058   $         44,023   $       39,171
                                                             ==============   ===============   ================   ==============

PER COMMON SHARE DATA
Net income - basic                                           $         0.51   $          0.49   $           2.13   $         1.90
Net income - diluted                                                   0.51              0.48               2.12             1.89
Cash dividends                                                         0.28              0.26               1.10             1.00
Book value                                                                                                 13.34            12.84
Market  value                                                                                              35.06            33.61
Shares outstanding - end of period                               20,714,401        20,682,101         20,714,401       20,682,101
Average outstanding shares - basic                               20,709,615        20,672,585         20,696,980       20,659,020
Average outstanding shares - diluted                             20,791,465        20,761,607         20,777,518       20,751,900

PERFORMANCE RATIOS
Return on average assets                                               1.64 %            1.78   %           1.80 %           1.82 %
Return on average equity                                              15.32             15.00              16.17            15.09
Net interest margin (tax equivalent)                                   4.43              4.46               4.49             4.49
Efficiency ratio                                                      54.30             51.42              52.48            51.78


Note:  On  April  26,  2005,  the  Company's  Board  of  Directors   declared  a
four-for-three stock split in the form of a 33% stock dividend effective June 1,
2005.  All  share and per  share  amounts  in this  earnings  release  have been
restated to reflect this stock split.





                        FIRST FINANCIAL BANKSHARES, INC.
                       SELECTED FINANCIAL DATA (UNAUDITED)
                      (In thousands, except per share data)




                                                                                  Quarter Ended
                                               ----------------------------------------------------------------------------------
                                                                            2005                                         2004
                                               -----------------------------------------------------------------   --------------
                                                 Dec. 31,        Sept. 30,         June 30,         Mar. 31,           Dec. 31,
                                               -----------    -------------    --------------    ---------------   --------------

                                                                                                    
ALLOWANCE FOR LOAN LOSSES
Balance at beginning of period                 $    14,375    $      14,323    $       14,409    $        13,837   $       13,680
Loans charged off                                     (529)            (486)             (552)              (390)          (1,099)
Loan recoveries                                        175              221               143                187              185
                                               -----------    -------------    --------------    ---------------   --------------
Net (charge-offs) recoveries                          (354)            (265)             (409)              (203)            (914)
Allowance established at acquisition                   429                -                 -                365              457
Provision for loan losses                              269              317               323                410              614
                                               -----------    -------------    --------------    ---------------   --------------
Balance at end of period                       $    14,719    $      14,375    $       14,323    $        14,409   $       13,837
                                               ===========    =============    ==============    ===============   ==============

Allowance for loan losses /
     period-end loans                                 1.14  %          1.19  %           1.20 %             1.20  %          1.19 %
Allowance for loan losses /
     nonperforming loans                             415.9            475.1             609.7              462.6            324.7
Net charge-offs / average loans
     (annualized)                                     0.11             0.09              0.14               0.07             0.32


NONPERFORMING ASSETS
Nonaccrual loans                              $      3,524   $        2,989   $         2,323   $          3,112   $        4,142
Accruing loans 90 days past due                         15               37                26                  3              120
                                               -----------    -------------    --------------    ---------------   --------------
     Total nonperforming loans                       3,539            3,026             2,349              3,115            4,262
Foreclosed assets                                      705              796               838              1,138              779
                                               -----------    -------------    --------------    ---------------   --------------
     Total nonperforming assets                $     4,244    $       3,822    $        3,187    $         4,253   $        5,041
                                               ===========    =============    ==============    ===============   ==============

As a % of loans and foreclosed assets                 0.33  %          0.32  %           0.27 %             0.35  %          0.43 %


CAPITAL RATIOS
Tier 1 Risk-based                                    13.91  %         15.90  %          15.60 %            15.37  %         16.46 %
Total Risk-based                                     14.87            16.92             16.62              16.41            17.49
Tier 1 Leverage                                       8.37             9.30              9.08               8.94             9.80
Equity to assets                                     10.11            11.15             11.30              11.07            11.47






                                                                       Three Months Ended                     Year Ended
                                                                          December 31,                        December 31,
                                                             --------------------------------    --------------------------------
RECONCILIATION OF NET INCOME                                       2005              2004              2005              2004
                                                             --------------    --------------    ---------------   --------------
                                                                                                       
Net Income                                                   $       10,581    $       10,058    $        44,023   $       39,171
Gain on sale of PULSE ownership rights                                    -                 -              3,895                -
   Less Tax Effect                                                        -                 -             (1,363)               -
                                                             --------------    --------------    ---------------   --------------
         Net Gain on sale of Pulse ownership rights                       -                 -              2,532                -
                                                             --------------    --------------    ---------------   --------------
Net Income excluding gain on sale of Pulse
     Ownership rights                                        $       10,581    $       10,058    $        41,491   $       39,171
                                                             ==============    ==============    ===============   ==============





                        FIRST FINANCIAL BANKSHARES, INC.
                       SELECTED FINANCIAL DATA (UNAUDITED)
                      (In thousands, except per share data)





                                                                       Three Months Ended                   Year Ended
                                                                          December 31,                      December 31,
                                                             --------------------------------   ---------------------------------
NONINTEREST INCOME                                                 2005              2004              2005              2004
                                                             --------------   ---------------   ----------------   --------------
                                                                                                       
Gain on sale of student loans, net                           $           48   $            80    $         1,802   $        2,592
Gain on sale of PULSE ownership rights                                    -                 -              3,895                -
Gain on securities transactions, net                                      6               336                235              388
Trust fees                                                            1,916             1,707              7,068            6,374
Service charges on deposits                                           5,493             5,373             21,381           20,430
Real estate mortgage fees                                               474               435              2,081            1,982
Net gain (loss) on sale of foreclosed assets                             (3)                1                 60              172
ATM and credit card fees                                              1,331             1,063              4,961            3,908
Other noninterest income                                                701               721              2,697            2,977
                                                             --------------   ---------------   ----------------   --------------
     Total Noninterest Income                                $        9,966   $         9,716    $        44,180   $       38,823
                                                             ==============   ===============   ================   ==============



                                                                       Three Months Ended                   Year Ended
                                                                          December 31,                      December 31,
                                                             --------------------------------   ---------------------------------
NONINTEREST EXPENSE                                                2005              2004              2005              2004
                                                             --------------   ---------------   ----------------   --------------
Salaries and Employee Benefits                               $       10,268   $         8,770    $        40,317   $       35,529
Net Occupancy Expense                                                 1,353             1,060              5,043            4,196
Equipment Expense                                                     1,675             1,387              6,191            5,533
Printing, Stationery and Supplies                                       497               455              1,988            1,716
ATM and credit card expenses                                            747               646              2,908            2,307
Audit  Fees                                                             311               234              1,104              857
Legal, Tax and Professional Fees                                        688               597              2,611            2,196
Correspondent Bank Service Charges                                      342               384              1,438            1,577
Advertising and Public Relations                                        665               526              2,558            2,146
Amortization of Intangible Assets                                       214                46                680              162
Other Noninterest Expense                                             2,761             2,824             10,811            9,909
                                                             --------------   ---------------   ----------------   --------------
     Total Noninterest Expense                               $       19,521   $        16,929    $        75,649   $       66,128
                                                             ==============   ===============   ================   ==============


TAX EQUIVALENT YIELD ADJUSTMENT                              $        1,194   $         1,244   $          4,793   $        4,997
                                                             ==============   ===============   ================   ==============



                                                                       Three Months Ended                   Year Ended
SELECTED AVERAGE BALANCES                                                 December 31,                      December 31,
                                                             --------------------------------   ---------------------------------
                                                                   2005              2004              2005              2004
                                                             --------------   ---------------   ----------------   --------------
Total Loans                                                  $   1,234,668    $   1,135,634     $      1,209,094   $    1,044,010
Investment Securities                                             1,004,678           882,728            958,879          906,651
Federal Funds Sold and Other Short Term Investments                  89,678            49,376             61,059           28,032
                                                             --------------   ---------------   ----------------   --------------
     Total Interest Earning Assets                           $    2,329,024   $     2,067,738   $      2,229,032   $    1,978,693
                                                             ==============   ===============   ================   ==============

Interest Bearing Deposits                                    $    1,633,161   $     1,424,084   $      1,563,709   $    1,350,991
Federal Funds Purchased and Repurchase Agreements                    64,184            46,343             58,162           55,635
                                                             --------------   ---------------   ----------------   --------------
     Total Interest Bearing Liabilities                      $    1,697,345   $     1,470,427   $      1,621,871   $    1,406,626
                                                             ==============   ===============   ================   ==============

Total Deposits                                               $    2,197,452   $     1,922,424   $      2,100,937   $    1,816,461
                                                             ==============   ===============   ================   ==============

Shareholders' Equity                                         $      274,005   $       266,726   $        272,298   $      259,502
                                                             ==============   ===============   ================   ==============

Total Assets                                                 $    2,558,916   $     2,254,207   $      2,449,845   $    2,148,341
                                                             ==============   ===============   ================   ==============