Calling with NFD + OC on paired raised flop.

[Daliman]

OK, playing 10-20, in a recent hand, I limped mid postion behind one weak/abc player with A2[img]/images/graemlins/diamond.gif[/img], one more limper came, as did the SB, and the BB makes it 50 to go. NO read on BB, but this play often seems to me to be either a BPP or low to middle suited connectors. All call but the SB, 4 see the flop, which comes:

3 [img]/images/graemlins/diamond.gif[/img] Q [img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/heart.gif[/img]

BB bets out 250, and I'm lending credence to BPP, but not QQ.

Is calling a bad line here, figuring him for KK? Obviously, a raise is to be considered, but if he DOES have the KK or even the unlikely AA, is can't imagine he's folding very often. I think I've been getting in trouble lately dedicating a lot of chips on the flop with 12+ outs and up and a friend I showed the hand to called it a clear, easy fold, (he's tight, but a significant winner in the game.)

Thoughts?