QQ in 3bet pot, facing shove on flop (NL50)

[CalledDownLight]

Villian is multi-tabling LAG, possibly 2p2. Runs about 21/11 over around 1k hands. I haven't done anything out of line in 2 or so orbits I've been at table and haven't seen anything out of line from him. He's been playing pretty aggressive, but hasn't 3bet since I've been at table (about 20 hands). Do I call this or does he always show up with AA or KK here? If this is clear one way or the other them please let me know what the worst hand you call with is. Feel free to comment on preflop or flop raise, but they seem pretty standard to me.

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

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

UTG+1 ($57.50)
MP1 ($101)
MP2 ($59)
MP3 ($18.35)
CO ($50)
Hero ($62.70)
SB ($14.30)
Villian ($73.55)
UTG ($49.45)

Preflop: Hero is Button with Q[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/club.gif[/img]. CO posts a blind of $0.50.
<font color="#666666">5 folds</font>, CO (poster) checks, <font color="#CC3333">Hero raises to $2.5</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Villian raises to $8</font>, CO folds, Hero calls $5.50.

Flop: ($16.75) 3[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Villian bets $10</font>, <font color="#CC3333">Hero raises to $25</font>, <font color="#CC3333">Villian raises to $65.55</font>, Hero ???