3betet pot AK to weak TPTK

[praios]

Party Poker - No Limit Hold'em Cash Game - $3/$6 Blinds - 5 Players - (LegoPoker Hand History Converter)

SB: $1,102.20
Hero (BB): $658.40
UTG: $770.50
CO: $600.00
BTN: $1,097.90

Preflop: Hero is dealt K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] (5 Players)
2 folds, <font color="red">BTN raises to $21.00</font>, SB calls $18.00, <font color="red">Hero raises to $99.00</font>, BTN folds, SB calls $78.00

Flop: ($219) T[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/club.gif[/img] (2 Players)
SB checks, Hero checks

Turn: ($219) 3[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $125.00</font>, Hero calls $125.00

River: ($469) Q[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets all-in for $878.20</font>, Hero folds

Pot Size: $1,347.20

38/29/3.2/25 villian

[Yeti]

villains stats and preflop play indicates that he likely sucks. if so, i would bet the flop and not fold.