AA, villian pushes

[tylerdurden]

Button is 22.4 VP$IP, 1.7 PFR, not very aggressive

Party Poker No-Limit Hold'em, $ Hero (9 handed) converter

UTG+1 ($74.15)
MP1 ($46.5)
MP2 ($14.05)
MP3 ($50.65)
CO ($48.01)
Button ($51.55)
SB ($48.15)
Hero ($55.75)
UTG ($29.05)

Preflop: Hero is BB with A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img]. CO posts a blind of $0.5. SB posts a blind of $0.25.
<font color="#666666">1 fold</font>, UTG+1 calls $0.50, <font color="#666666">2 folds</font>, <font color="#CC3333">MP3 raises to $1</font>, <font color="#666666">1 fold</font>, Button calls $1, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $2.5</font>, UTG+1 calls $2.50, MP3 calls $2, Button calls $2.

Flop: ($12.75) 2[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $6</font>, UTG+1 folds, <font color="#CC3333">MP3 raises to $15</font>, Button calls $48.55 (All-In), Hero ???

Is there any way the button does not have a set here? I can't see just smoothcalling MP3's preflop minraise with any overpair.

And what about MP3? If I call this, I have to worry about going up against two people? It seems pretty likely that one of these two has me beat here.