Too Loose on the Small Streets?

[Scotch78]

Third hand at the table, so no individual reads. Lobby listed the Plrs/Flop at 70% though.

I'm pretty sure the over-limp is okay, so mainly wondering whether people call this flop. I realize all I've got is the backdoor straight draw a lot of the time, but he should have AK pretty often and I have something like seven outs then.

Pacific $2/$4 Limit Hold'em

Dealt to Hero [ Qc Jh ]
3 folds.
MP calls [$2].
MP2 calls [$2].
2 folds.
Hero calls [$2].
SB folds.
BB raises [$2].
MP calls [$2].
MP2 calls [$2].
Hero calls [$2].

** Dealing Flop ** [ 3c, 2s, 10h ]
BB bets [$2].
MP folds.
MP2 calls [$2].
Hero calls [$2].

** Dealing Turn ** [ 9d ]
BB bets [$4].
MP2 calls [$4].
Hero calls [$4].

** Dealing River ** [ Jc ]
BB bets [$4].
MP2 folds.
Hero calls [$4].

Scott