I wasn't real worried about SB, he was pretty tight, seemed to me he was check folding KK or QQ (guess I should have said that earlier). Flop call is pretty thin, but with my set outs (if UTG has AA I'm going to lose a lot here) and 8 cards for a gutshot I thought I had just enough to call. Pot's getting pretty big and I figured it was worth 1 sb to see what the turn brought.