Check up on a river fold.

[bdypdx]

Loose, passive, ideal... B&M 3/6 game, 9 player table. I'm in seat 9. Total fish in seats 7 & 8 and are the blinds in this hand. Weak-tight guy is in seat 6. Otherwise, the table is very fishy except for seat 3. (Oh, the players in seats 7 & 8 could pretty much be guaranteed to call no matter what the action by the time it got back to them. 3-bet? Capped? They'd be in!)

I'm UTG with QsTs and limp in. 3 more limpers and the button raises. The blinds call of course and I call, as do the other limpers.

Flop: QhTc6d
Blinds check. I bet out. 2 limpers call, seat 3 folds, button calls and blinds call.

Turn: Jd (QhTc6d)
Blinds check. I bet. Limpers fold. Button calls. SB folds. BB calls.

River: 5d (JdQhTc6d)
BB bets. Uh oh. This is the second time the guy has actually bet, as opposed to calling, in 3 hours. I call. Button raises. BB calls. I fold.

Thoughts?