Debatable flop play? Foldable river or mandatory call?

[Aukai]

I cried and called, but I'm wondering if I can safely fold this river given the action. MP2 is LA-P, button is a big-time LAG, but even LAGs usually don't 3-bet with less than top pair. He'd have raised pre with AA or KK, so he doesn't have an overpair.

Irregardless of getting 3-bet behind me, how do you feel about the flop raise?

Party Poker 3/6 Hold'em (9 handed) converter

Preflop: Hero is CO with 6[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls, UTG+1 calls, MP1 calls, MP2 calls, MP3 folds, Hero calls, Button calls, SB folds, BB checks.

Flop: (7.33 SB) 6[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(7 players)</font>
BB checks, UTG checks, UTG+1 checks, MP1 checks, <font color="#CC3333">MP2 bets</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">Button 3-bets</font>, BB folds, UTG folds, UTG+1 folds, MP1 folds, MP2 folds, Hero calls.

Turn: (7.16 BB) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, <font color="#CC3333">Hero raises</font>, Button calls.

River: (11.16 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero calls.

Final Pot: 13.16 BB