4 handed river decision? (online 50/100)

[DonCaspero]

Please comment all streets - mainly river

Limper is loose passive. Raiser is lag, I have yet to decide how good a hand reader he is postflop, but definately seems to know the game. Both blinds are tags - SB a bit on the passive side maybe. I am tag, and haven't done anything crazy yet.


50/100 (9 handed)

Preflop: Hero is CO with J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#CC3333">MP1 raises</font>, <font color="#666666">2 folds</font>, Hero calls, <font color="#666666">1 fold</font>, SB calls, <font color="#666666">1 fold</font>, UTG+1 calls.

Flop: (9 SB) 6[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, <font color="#CC3333">MP1 bets</font>, Hero calls, SB calls, UTG+1 calls.

Turn: (6.50 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, <font color="#CC3333">MP1 bets</font>, Hero calls, SB calls, UTG+1 calls.

River: (10.50 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, UTG+1 checks, <font color="#CC3333">MP1 bets</font>, Hero raises or calls??