Both villains are mostly passive, SB is loose (~44vpip) and mp2 is about 20vpip.
Party Poker 2/4 Hold'em (10 handed)
FTR converter on zerodivide.cx
Preflop: Hero is MP1 with A[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img].
<font color="#666666">
3 folds</font>, Hero calls, MP2 calls, <font color="#666666">
3 folds</font>, SB completes, BB checks.
Flop: (4 SB) 2[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, BB folds, Hero calls, <font color="#CC3333">MP2 raises</font>, <font color="#CC3333">SB 3-bets</font>, Hero...
First call was based on 3 clean outs for a straight, ~1.5 outs for an Ace, and ~1.5 outs for backdoor flush draw.
After it was raised and reraised, the action feels too strong for me to stick around.
(table was pretty loose and passive in general - this explains the open limp with A3s)