Top trips with AK, and a backdoor draw....attack, or build a pot?

[hmkpoker]

MP1 is TAG, 14/6/3.18 after 214 hands
UTG is unknown.

Party Poker 2/4 Hold'em (8 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is MP2 with K/images/graemlins/heart.gif, A/images/graemlins/spade.gif.
UTG calls, <font color="#666666">1 fold</font>, MP1 calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">4 folds</font>, UTG calls, MP1 calls.

Flop: (7.50 SB) T/images/graemlins/heart.gif, A/images/graemlins/club.gif, A/images/graemlins/heart.gif <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">MP1 bets</font>, Hero calls, UTG calls.

Turn: (5.25 BB) 4/images/graemlins/heart.gif <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">MP1 bets</font>, <font color="#CC3333">Hero raises</font>, UTG calls, MP1 folds.

River: (10.25 BB) 5/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets</font>, Hero calls.

Final Pot: 12.25 BB

[Nick Royale]

I wouldn't give UTG the odds to draw to a gut-shot on the flop. Also, by playing the way you did you're really giving away your hand to a TAG.