Family pot with KK

[SparkyDog]

I have KK on in BB. Everyone limps to the SB who raises and I three-bet. Two very loose and rather passive players call in the hijack and button, and the other two drop. So three to the flop for 14 SB's.

2 [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/club.gif[/img]5 [img]/images/graemlins/spade.gif[/img]
Checked to me and I bet and all call. 4 to the turn for 9 BB's.

6 [img]/images/graemlins/heart.gif[/img]
I bet, hijack raises, SB calls, and I call. 3 to the river for 15BB's.

2 [img]/images/graemlins/spade.gif[/img]
I check with the intention of raising.

yay? nay?