Think you have to call. Since you didn't bet the flop (and everyone almost always bets top pair for value) your opponent probably doesn't think you have a Queen. He could be making this move with a ton of hands... inlcuding bottom pair A-kickie...

Call... if he shows you a boat... oh well.

I don't think you're against AQ or KQ as it was a 3 way limped pot.