100NL flopped trips, turned boat... hero folds?

[Hince]

100NL on Pokerstars.

Villian ($180) seems loose not overly aggressive, but no real read. 33/17/.9 over 45 hands.

Villian calls UTG, 1 other caller. Hero ($145) calls with 66 in late position. SB calls, BB checks. Pot = $5

Flop comes Q [img]/images/graemlins/heart.gif[/img]9 [img]/images/graemlins/heart.gif[/img]6 [img]/images/graemlins/club.gif[/img].

Check. Check. Villan bets $5. 1 Fold. Hero raises to $15. Fold. Fold. Villian calls.

Pot = $36

Heads-up. Turn is 9 [img]/images/graemlins/spade.gif[/img].

Villian bets all-in.

Hero????