SB at a 20/40 game

[marsvolta619]

20/40 at Ocean's 11 here, second hand at table. Just came over from an 8/16 game while waiting for a seat, my image from my appearance is probably LAGgy.

I'm in SB with a black JJ, 7 limpers, I complete, BB checks. 9 to the flop

J94 2 hearts.

I bet, BB calls, mp1 raises, all fold to me, I 3-bet, BB folds, mp1 calls.

Turn: heart

I bet, mp1 calls.

River: king of hearts

I check, mp1 bets, I ???