Donkfold river?

[Guy McSucker]

Awesome Stars $5/10 table. MP is a 24/16 TAG, kind of predictable. CO is a nutcase: my note just says "does everything wrong" because he's too aggressive with weak made hands, too passive with strong made hands, limps too much, calls along too much etc etc. SB is 65/50/1 and also does everything wrong.

I have black aces in the BB.

MP, CO and SB limp. I raise and they all call.

Flop is 764 with two diamonds. SB checks, I bet, MP raises, two calls, I threebet, MP caps, call, call.

I have never seen him put in this much action: he either has a strong made hand (two pair or better) or a strong draw. I don't think he'd have a straight on this board. I am quite worried about a set but I am showing down unless things turn ugly.

Turn is offsuit 9. SB checks, I check, he bets, call, call, I call.

River is another offsuit 9. SB checks.

I just overtook flopped two pairs. None of the strong draws came in. MP must put me on an overpair and might check two pair behind. CO, for all his silliness, doesn't fire much on the river.

Should I donk here? What if MP raises?

Guy.