overpair in tough spot

[pohuist]

20-40 10 handed live

The game is VERY good. All villains are terrible players. H/J is a 10-20 player taking a shot. He plays in a typical weak 10-20 way. (playing almost every hand, NEVER raises preflop, almost never bets/raises post flop, but calls down with anything, including back-door draws with undercards in small pots. Button is a weak loose/passive player. BB is loose/semi-aggressive player with a tendency to overplay his hands.

H/J open limps, Hero raises in c/o with 8 [img]/images/graemlins/heart.gif[/img]8 [img]/images/graemlins/club.gif[/img]. Button cold calls 2, BB and limper call.

The flop is 6 [img]/images/graemlins/diamond.gif[/img]6 [img]/images/graemlins/club.gif[/img]3 [img]/images/graemlins/diamond.gif[/img]
It is checked to hero who bets, button raises, BB calls 2 cold, limper folds, hero calls.

The turn is 3 [img]/images/graemlins/club.gif[/img].
Button bets, BB calls.

Hero?
Plan for a blank river?