Hi,
I had some problem lately playing against some passive players. Let say i open in mp 4xbb with kqs and button calls. Flop il K 5 9 with two diamonds. I lead with a bet 3/4 of the pot and get called. Now i put villain on a draw, turn comes 2 or some other rags, no flush. I bet again, around the pot, and he calls. By the end i will discover he beats me with Ak. Did I play so wrong??

My problem here is that after the first call (and the pf call) I don t put him on a strong hand. I know he has something but i think that if i check the turn i am showing weakness and a big bet on his part can easily take the pot...
any suggestion how to play this situation?? (I don t have a record if this player of course)