Openraising KK from a steal position

[sfer]

Live 4/8. Folded to me in the CO and I raise K [img]/images/graemlins/heart.gif[/img]K [img]/images/graemlins/club.gif[/img]. The archetype loose passive, nicknamed Gutshot ___, coldcalls, both blinds call. Everyone (except me and a certain someone with a Clash tat on his shoulder) overdefends their blinds at this card barn. SB is terrible, BB is okay postflop.

4 to the flop for 8 SBs. Flop is J [img]/images/graemlins/club.gif[/img] 6 [img]/images/graemlins/club.gif[/img] 3 [img]/images/graemlins/spade.gif[/img]. Checked to me, I bet, button and BB call.

3 to the turn for 5.5 BBs. Turn is the A [img]/images/graemlins/club.gif[/img]. BB checks, I bet, button calls, BB folds.

The river blanks a red card. Your action?