AA facing a check raise on the flop

[mpitts]

Villain is 52/5 and his post-flop aggression is 3 after 42 hands. Known starting hands are AJo, K4o, 98o, 87o and 52s.

Party Poker No-Limit Hold'em, $ BB (8 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

Button ($98)
SB ($114.5)
BB ($123.5)
<font color="#C00000">UTG ($136.75)</font>
<font color="#C00000">Hero ($97.65)</font>
MP1 ($136.15)
MP2 ($37)
CO ($173.25)

Preflop: Hero is UTG+1 with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.5.
UTG calls $1, <font color="#CC3333">Hero raises to $4</font>, <font color="#666666">3 folds</font>, Button calls $4, <font color="#666666">2 folds</font>, UTG calls $3.

Flop: ($13.50) T[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets $10</font>, Button folds, <font color="#CC3333">UTG raises to $25</font>

Hero?