Warning: Small pot and undramatic

[worm33]

30-60 at canterbury full game good game. Im in the SB with the Jc3c. 2 players limp i complete and bb checks.

Flop comes 9c 5c 5h. I bet, BB raises both other players fold.

King of diamonds on the turn (9c 5c 5h Kd). I check and BB quickly checks. BB is a very bad player who plays 40-50% of his hands, is pretty non aggressive and doesnt bluff much but is capable of a bluff. But when he checks behind I am 95% sure he flopped a flush draw.

K of spades on the river (9c 5c 5h Kd Ks). $240 in the pot. Whats my play and why?