NL25: AA facing tough allin-decision on the flop

[bussolini]

Villain pretty solid over only 50 hands with 20/12, no reads on him at all....
i always put villains on a strong draw with those moves and can almost never lay down this hand in a spot like this.
Anyone folding that here? On one hand i hate getting all my money in with 1 pair. Can rather fold that hand to a minraise than to the all in push...Maybe cause ive seen people using that move so many times on draws with fold equity and bc im using it as well...Even if i think the all in with the winning hand (set or 2 prs or J 10) has much more value because of that thought process and gets almost a call everytime...
Can you guys help and check my line? I insta called it without even thinking..

Poker Stars - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 4 Players - (LegoPoker HH Converter)

SB: $12.85
<font color="black">Hero (BB): $36.95</font>
UTG: $30.00
BTN: $3.85

<font color="black">Preflop:</font> Hero is dealt A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (4 Players)
<font color="red">UTG raises to $1.00</font>, 2 folds, <font color="red">Hero raises to $3.50</font>, UTG calls $2.50

<font color="black">Flop:</font> ($7.10) 9[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $4.00</font>, <font color="red">UTG raises all-in to $26.50</font>, Hero ?????????????????

Should have bet more on flop as well, no?