Okay, tell me what you think of this line. Keep in mind that at the turn the opp is extremely shortstacked (doesn't even have 2/3 of the pot).

$200 NL

PREFLOP
Villain limps $2 from EP
Raiser raises $10 from MP
Hero calls $10 from LP - [Js Ts]
Villain calls $8

FLOP - [Tc, 5s, 6h] - Pot is $33
Villain checks
Raiser checks
Hero bets $15 At this point i'm worried a little about the raiser's check - has he flopped a monster?
Villain calls $15 Now i'm worried about this guy - what hand flatcalls here? Does he have a set?
Raiser folds Okay, no monster lurking there

TURN - [Tc, 5s, 6h, Jc] - Pot is $63
Villain checks
Hero ????

At this point the villain only has $37 left. Any reasonable bet pot-commits me. Should I walk right in to a possible set, or do I risk giving a free card?

Villain is loose (37-7) and mildly fishy.