KQs blind steal reraise

[dave44]

Button is TAG.

Party Poker 10/20 Hold'em (6 max, 6 handed) converter

Preflop: Hero is BB with K[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/heart.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Button raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero 3-bets</font>, Button calls.

Flop: (6.50 SB) 7[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

Turn: (4.25 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

River: (6.25 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero

Think single spade's calling the turn and bluffing the river are enough to call this one? I would think good aces would cap preflop and bad ones would have folded by now but who knows.