JTs flush on prd board river c/r

[Everlong]

I am fairly (OK totally) new to limit. UTG is a pretty bad LAG-ish player I have on several tables. He two-, and three-barrels rather frequently so there is a chance this is some retarded bluff.. I don't know what the standard river line is here but as played I have to call right?

Hold'em (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is CO with T[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img].
UTG calls, MP calls, Hero calls, <font color="#666666">1 fold</font>, SB completes, BB checks.

Flop: (5 SB) 6[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, <font color="#CC3333">UTG bets</font>, MP calls, <font color="#CC3333">Hero raises</font>, SB folds, BB folds, UTG calls, MP calls.

Turn: (5.50 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, MP checks, <font color="#CC3333">Hero bets</font>, UTG calls, MP calls.

River: (8.50 BB) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, MP checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG raises</font>, MP folds, Hero ?.

Final Pot: 12.50 BB