3bet preflop with AK check flop?

[veganmav]

Party Poker 15/30 Hold'em (9 handed) converter

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img]. MP3 posts a blind of $15.
<font color="#CC3333">UTG raises</font>, <font color="#666666">1 fold</font>, MP1 calls, <font color="#666666">1 fold</font>, MP3 (poster) calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero 3-bets</font>, SB calls, <font color="#666666">1 fold</font>, UTG calls, MP1 calls, MP3 calls.

Flop: (16 SB) 9[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, UTG checks, MP1 checks, MP3 checks, Hero..?

Bet this flop? check it? I don't wanna get checkraised, and it is very likely that someone got a piece of this board or a draw, with the flush and straight draws out there. Yeah a check-raise would suck. And I have 4 opponents who each paid 3 bets to see the flop. Is this an easy check? or could there be a bet here?