Getting re-raised with AQo

[PrayingMantis]

33$ SNG, pretty early, blinds 25/50, I'm third with 2175. This is a relatively passive table, with many limpers PF.

I'm BB holding AQo. 3 limpers and SB completes. I've played it rather tight until then, so I decide to try and take the pot right here, and make it 300. Folded to MP (860 after limping), who pushes. It's folded to me.

I don't have a strong read on him, but he was playing rather loose until now. Of course it looks like a big pair, limping-pushing like this, but I've seen this move with all sorts of pairs too, 88-JJ, especially by shorter stacks. And another thing, I havn't seen people do it too often with AK.

If he had a bigger stack, I would have folded without thinking much. But what's my move here?