25NL Rivercall with TPTK on "safe" board?

[Swedebubba]

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($53.10)
Hero ($25)
SB ($63.30)
BB ($11.55)
UTG ($16.95)
MP ($24.65)

UTG is 25/9/3 (56 hands). No other reads.

Preflop: Hero is Button with K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls $0.25, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $1</font>, <font color="#666666">1 fold</font>, BB calls $0.75, UTG calls $0.75.

Flop: ($3.10) 4[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, UTG checks, <font color="#CC3333">Hero bets $2</font>, BB folds, UTG calls $2.

Standard cont bet to keep the lead.

Turn: ($7.10) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, Hero checks.

River: ($7.10) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $6</font>, Hero ?