Boat on the flop

[ResidentParanoid]

Loose LL online game. Mostly passive pre-flop. 2 very loose players at the table in SB and on the button. I have 77 in EP. Limper to me, I call, MP and button call, SB, BB call.

Flop comes 2 7 2 rainbow. Checked to button, who bets, SB calls, limper folds, I call, MP calls, button calls.

Turn is J (2 7 2), two diamonds. SB checks, I bet, MP calls, button calls, SB calls.

River is A J (2 7 2), 3 diamonds. SB checks, I bet, CO raises, button and SB fold, I re-raise, CO calls.

Comments?