ATs-flop TP and flush draw - slow down facing turn raise?

[littlejohn]

Villian in this hand is brand new to me. In fact, I think this is only his second hand at the table and I have never played against him before. Thoughts on all streets welcome.

Party Poker 2/4 Hold'em (10 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is SB with A/images/graemlins/diamond.gif, T/images/graemlins/diamond.gif.
UTG calls, UTG+1 calls, <font color="#666666">2 folds</font>, MP2 calls, MP3 calls, CO calls, Button calls, <font color="#CC3333">Hero raises</font>, BB calls, UTG calls, UTG+1 calls, MP2 calls, MP3 calls, CO calls, Button calls.

Flop: (16 SB) K/images/graemlins/diamond.gif, 6/images/graemlins/diamond.gif, A/images/graemlins/heart.gif <font color="#0000FF">(8 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, UTG folds, UTG+1 calls, MP2 folds, MP3 folds, CO calls, Button calls.

Turn: (10.50 BB) 5/images/graemlins/heart.gif <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, <font color="#CC3333">UTG+1 raises</font>, CO folds, Button folds, Hero calls, BB calls.

River: (16.50 BB) 6/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, <font color="#CC3333">UTG+1 raises</font>, Hero calls.

Final Pot: 20.50 BB

[mr pink]

don't know about the river bet. best you can do is chop with any other ace here.

[pokerkai]

Ya, slowdown on the turn
Hate the river bet

[DcifrThs]

preflop great!

flop: yup.

turn: yup.

river: check.

-Barron

[littlejohn]

Ah, I guess I looked at the river as though the worst that would happen would be a split, and the best would be that I win the whole pot. But he could have raised the turn with a bunch of stuff that still beats me.

As it turns out, villian had 2d3d, MHIG and he's a new buddy.