Bit of a tricky spot. I think the flop play is fine. It's unlikely we'll fold out any overcard hands or marginal draws with a bet, and thus waiting for the turn, where our equity may change dramatically, is fine. Though, it's unfortunate BB led out, since it makes protection difficult.

Bet/3-betting or check-raising the flop here will only inflate an already large pot, and make it near impossible for us to protect our hand on the turn.

Turn is tough because of our terrible position, in my opinion. I think check/folding is okay here, given the size of the field. It's probable we're behind, and when ahead it's likely we'll have to dodge several river cards (any [img]/images/graemlins/heart.gif[/img], overs, & gut shot cards). Check-raising may be an option, after only two call, though BB has represented a lot of strength by leading into a very large field.