10/20, two power hands

Wondering how I played these, where I could have squeezed out more value:

1. 4 [img]/images/graemlins/spade.gif[/img] 4 [img]/images/graemlins/club.gif[/img]. I Limp from UTG, 2 MP callers, Button raises, SB folds, BB calls, I call, 2 MPs calls. Button is somewhat tight, aggressive.

Flop: 4 [img]/images/graemlins/heart.gif[/img] 6 [img]/images/graemlins/heart.gif[/img] K [img]/images/graemlins/diamond.gif[/img]

SB checks, BB checks, I bet, MP1 folds, MP2 folds, Button raises, BB folds. I call.

Turn: J [img]/images/graemlins/spade.gif[/img]

I check, he bets, I raise, he calls.

River: I bet, he calls.

2. UTG with K [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/heart.gif[/img]

I call. MP1, MP2, MP3, CO limps, button raises, SB folds, BB calls, I call, MP1 calls, MP2 calls, MP3 folds.

Flop: 8 [img]/images/graemlins/club.gif[/img] K [img]/images/graemlins/club.gif[/img] J [img]/images/graemlins/club.gif[/img]

I bet, everyone folds around to button who raises. I call.

Turn: 4 [img]/images/graemlins/diamond.gif[/img]

I check, button bets, I raise, he calls

River: A [img]/images/graemlins/diamond.gif[/img]

I bet, button ____.