whats the standard play here?

[tarath]

Full Tilt Poker - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $125.45
BB: $110.60
Hero (UTG): $120.40
MP: $116.15
CO: $101.80
BTN: $114.20

Preflop: Hero is dealt 9[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] (6 Players)
<font color="red">Hero raises to $3.50</font>, MP calls $3.50, CO calls $3.50, BTN calls $3.50, SB calls $3.00, BB folds

Flop: ($18.50) 7[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/heart.gif[/img] (5 Players)
SB checks, <font color="red">Hero bets $13.00</font>, MP folds, <font color="red">CO raises to $37.00</font>, 3 folds
Uncalled bet of $24.00 returned to CO

Pot Size: $44.50 ($2.20 Rake)

CO here is 16/16/infinity over 48 hands.

This seems like a decent flop for me bet with so many callers I'm not sure what to do against the raise... looked like a set to me. I worry though that bet/fold here is really easy to bluff me off of. is c/c a better line? Or c/r? I bet to protect my hand as I really don't want to give out a free card but i'm not sure if i have enough equity. Whats the standard line here?

[dirtytricks]

This is a tough spot but I think folding is fine here. It is multiway and a pretty thight opponent so a bluff is less likely.

If he does this a lot you have to adjust off course.

[Villeroi]

seems that he hit his set or may me drawing with something like 89(depends on your reads on him) and trying his FE + outs.