Party 25NL - TP2K slow played

[payoff wizard]

Villain is 17/11/3 over about 250 hands. I was very sure I was ahead on the flop when he checked to me, so, because the flop was so dry, I decided to let a card peel off for free to try and get more value. So WTF is he 3-bet shoving the turn with? I need help ranging here.

Party Poker No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($35.25)
Button ($26.20)
SB ($17.82)
BB ($26.55)
UTG ($15.50)
MP ($22.65)

Preflop: Hero is CO with A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, MP calls $0.25, <font color="#CC3333">Hero raises to $1.1</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">BB raises to $3.125</font>, MP folds, Hero calls $2.15.

Flop: ($6.85) 7[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Turn: ($6.85) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $3</font>, <font color="#CC3333">Hero raises to $10</font>, BB calls $26.30 (All-In), Hero ???

[creamfillin]

Everytime I see this line by villain it seems like top set. The flop check scares me (in retrospect), it either means KK,QQ,JJ afraid of the ace or the case ace just flopped. (or how a retard plays AK). On the turn I think I can lay this down, I'm not sure if this is a frustrated KK/QQ enough to make this call.

[Seikeau]

I think his 3bet range is either aces, kings, ak and queens. I think he checks this flop with both AA, KK and QQ but prob bets out with AK. Turn smells like slowplayed aces I guess.

[Prodigy54321]

I would just call the turn bet...you can value bet the river if he checks to you..with the intention of getting KK or QQ or something to "call your bluff"

[Jouster777]

Pretty sick to put him on the case AA but that's what he's playing it like. Doesn't seem like the type to push KK/QQ. May have AK or AQ. I fold and never find out.

[JS Inc]

Tough spot like everyone else said he would bet ak/aq, and probably JJ+ as well. I fold here.