Donkbet on turn, TPGK

[One Outer]

Villain in this hand is playing lots of hands. I've seen him donk into someone like this once before but his hand didn't show down. Button is pretty laggy. Loves to pump draws on the flop.

Hero is CO with K[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img]

UTG folds, UTG+1 (Villain) limps, EMP limps, 2 folds, Hero raises, Button calls, SB folds, BB calls, Villain and EMP call

Flop (5 handed, 10.5 sb): J[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/spade.gif[/img]

BB checks,UTG+1 checks, EMP checks, Hero bets, Button raises, BB folds, Villain calls, EMP folds, Hero threebets, Button calls, Villain calls

Turn (3 handed, 9.5 BB):

7[img]/images/graemlins/club.gif[/img]

UTG+1 bets, Hero...

I don't like any of my options. Calling seems the most correct thing to do. I hate that I still have a laggy Button behind me. If button raises and Villain just calls what's the plan? If button just calls I think I should call a blank river.

Should I ever raise the turn here (spewy)? Folding seems out of the question but I think I'm behind Villain and a substantial portion of his range is (I think) a straight.