Too Aggressive on Turn with KT's?

[mungpo]

UTG will raise any suited connectors from all positions, along with hands that have an Ace or King.

Button plays weak-tight and calls down a lot of second best hands.

Should I have 3-bet this turn or just call his raise?

Party Poker 1/2 Hold'em (6 max, 6 handed) converter

Preflop: Hero is MP with K[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, Button calls, <font color="#666666">2 folds</font>, UTG calls.

Flop: (10.50 SB) T[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, Button calls, UTG calls.

Turn: (6.75 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, Button calls, <font color="#CC3333">UTG raises</font>, <font color="#CC3333">Hero 3-bets</font>, Button calls, <font color="#CC3333">UTG caps</font>, Hero calls, Button calls.

River: (18.75 BB) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, Hero checks, Button checks.

Final Pot: 18.75 BB