The UTG player is a bit on the fishy side and the MP player is generally a fairly tough winning player although the fish had bitten him a few times. After I capped it and bet the flop and the solid player check raised me I put him on a big pair. When I hit my money card on the turn and it gets checked to me again and I get CR by the fish and 3 bet by the solid player I thought that I was definately looking at the minimum pocket aces from the solid player and perhaps a straight or set from the fish so I dumped it for two more bets. Ends up the fish had my hand and the generally solid player was trying to make a silly move against a player he knew would not fold. Thoughts on the turn laydown.

Party Poker 5/10 Hold'em (6 max, 6 handed)

Preflop: Hero is CO with , .
UTG raises, MP 3-bets, Hero caps, 3 folds, UTG calls, MP calls.

Flop: (13.40 SB) , , (3 players)
UTG checks, MP checks, Hero bets, UTG calls, MP raises, Hero calls, UTG calls.

Turn: (9.70 BB) (3 players)
UTG checks, MP checks, Hero bets, UTG raises, MP 3-bets, Hero folds, UTG calls.

River: (16.70 BB) (2 players)
UTG checks, MP bets, UTG calls.

Final Pot: 18.70 BB

Results in white below:
UTG has Ad Kc (two pair, kings and fours).
MP has Jh 7c (one pair, fours).
Outcome: UTG wins 18.70 BB.

I don't like it piers, especially at 6 max. Full Ring I may lay that down, that'd be tough too. The check after raising the flop doesn't seem like aces to me, he'd be more likely to bet the turn and know one of you with a K would raise him so he can 3 bet. And if UTG is a fishy player I'd much more likely put him on qk or maybe kj with two hearts, I doubt he has a set or straight. So I'd probably call down.

MK... I've got a question for you. Let's say that you have a read that MP raises and reraises with 8-out draws or better (like you probably should now). Do you still fold?