Is this the right call?

PLO$50 6max
Hero ($161.52) posts sb
BB
UTG
Villian 1 (47.25)
CO
Villian 2 (31.25) - I just took a decent pot off him and has been very aggressive to the point of reckless.

UTG calls, Villian 1 raises to 2.25, CO calls, Villain 2 calls
Dealt to Hero [J[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img] ]
Hero calls (I know this is a bad call)
BB folds, UTG calls
Pot is 11.75
flop is [K[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/diamond.gif[/img]]
Hero checks (?? or c/r initial raiser)
UTG checks
Villian 1 bets pot 11.50, fold, Villian 2 goes all-in for 29.50
Hero ?? (I sat a while before making my decision about this). Is Top and bottom good against this loose of a player and how much should I worry about Villian 1?