Quick Flop Question

[imported_PP123]

$6-$12

MP1: loose and moderately aggressive guy.
CO: not good but ok tag.
Button: loose-passive
SB: tight-passive.
BB: tight-passive.

Hero is MP2 with K [img]/images/graemlins/spade.gif[/img]Q [img]/images/graemlins/club.gif[/img].

MP1 calls, Hero raises, CO calls, Button calls, SB calls, BB calls, MP1 calls. 6 players.

Flop (12 SB): A [img]/images/graemlins/heart.gif[/img]K [img]/images/graemlins/diamond.gif[/img]J [img]/images/graemlins/diamond.gif[/img]
Checked to MP1 who bets, Hero...?

I have middle pair + an inside straight draw, but the board is very coordinated with all high cards. Easy raise anyway?