Three Barrel???

[bruce]

Bodog.

600 6 handed NL, villian and I have around $600 each.

I probably have a pretty tight image. I open raise from the button with 45s to $19. Small blind calls. Big blind folds. Small blind appears to be playing somewhat scared.

Flop comes Ac Ks 9h

SB checks I bet around $35 and he calls.

Turn Ac Ks 9h 2d

He quickly checks. I really thought if I made a pot sized
bet he would fold so I bet around $100 and of course he calls.

River brings Ac Ks 9h 2d 9s

He quickly checks. What is my best play and why?

Bruce