Two Pair On Three Flushed Flop

[StilettoNole 0]

I played a NL game with blinds at 2/5 and a limit of 150 per round (though, someone can raise back another 150). This is a full ring game, with most people having around $600 behind. I have played with the villain before, and have never seen him get too out of line. He is pretty straightforward and doesn't make random bluffs.I am in the small blind with Ah 9h. UTG raises to $20 and gets 3 callers. I call and so does the BB.pot: $120Flop:Ac 9c 2cI bet out $60. Folds to villain on the button who just calls.pot: $240Turn:JhI check and villain checks instantly behind.pot: $240River:3sI bet $100 and he instantly announces a raise (to the max) of $150.What is my move? What the hell does he have here?

[rainbowbrite 0]

does that mean 150 on top of your 100 or 150 total?

[StilettoNole 0]

He made it 150 on top of my 100.

[rainbowbrite 0]

your getting just under 4 to 1 to call. I think I call here

[Bubba83 0]

I hate the turn check, but I think you should probably call the river since the way he played the hand he could easily be making this play with a smaller two pair.