100NL- I have KK. Can I bet this A high flop?

[homeslice]

This villain and I have been mixing up frequently the past few orbits. We've both have loosened up. Prior to this getting 4 handed we've both had playing TAG. Is he capable of calling PF w/ less that QQ? Can I bet this flop, or do I check behind?

PokerStars No-Limit Hold'em, $1.00 BB (4 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($162.40)
Button ($121.85)
SB ($111.25)
BB ($131.40)

Preflop: Hero is UTG with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises to $4</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">BB raises to $13</font>, <font color="#CC3333">Hero raises to $40</font>, BB calls $27.

Flop: ($80.50) 7[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero ???

[pineapple888]

Well... without an A he's way more likely to put money in later than now. So betting the flop really seems pointless absent an über-read.

[Lucky]

check