AA hand

[SA125]

Live 10-20

Villain in this hand is the BB. He plays a lot and well and has been bouncing around the room all day looking for good games. I played 15-30 with him a few hours earlier. I'm sure he views me as tight.

I have 2 red A's and raise from EMP, folded to him and he calls from the BB.

Flop K 7 2 with 2 spades. Check/call.

Turn 5x. Check/call.

River Spade rag. He checks. Who wants to bet and fold to a raise?