[Hince]

I think BB has some kind of pair, although it is possible he is drawing to a flush, but to call a raise and a reraise with some kind of drawing hand preflop seems a little week.

If you bet on the turn any significant amount he may reraise you with a missed draw, a straight, or a set. Can you afford to fold this monster pot?

I'd rather keep the pot moderate size, check behind and call almost any bet on a non-scary river. With this type of line I think you make the most from lesser hands and lose the least to better.