AKs Call,Fold, Raise?

Party Poker 1/2 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, <font color="#CC3333">MP1 raises</font>, <font color="#666666">1 fold</font>, MP3 calls, <font color="#CC3333">Hero 3-bets</font>, Button calls, SB calls, <font color="#666666">1 fold</font>, UTG calls, <font color="#CC3333">MP1 caps</font>, MP3 calls, Hero calls, Button calls, SB calls, UTG calls.

Flop: (25 SB) 7[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, UTG checks, MP1 checks, <font color="#CC3333">MP3 bets</font>, <font color="#CC3333">Hero raises</font>, Button folds, SB folds, UTG folds, <font color="#CC3333">MP1 3-bets</font>, <font color="#CC3333">MP3 caps</font>, Hero calls, MP1 calls.

Turn: (18.50 BB) T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP1 bets</font>, <font color="#CC3333">MP3 raises</font>, Hero?

MP1 is 37/15/1.9
MP3 is 62/.9/1.7

I think preflop and flop are really standard. Do you call 2 back to you on the flop with TPTK?

On the turn, Do you give up getting 21.5 to 2 with a potential reraise behind you?