AA 3-bet on the turn.

[EVIL]

Actually, I disagree with my own post.

I think it's likely enough that he'd do this with 2 pair that it's worth it to call and see the river card as you're getting 12.5:1 approximately. Even if you only have 5 outs (2 aces and 3 deuces), you only need to be getting 8:1 to make the call worthwhile. I would fold the river to a bet if unimproved, though.