I get
![The Ace of Diamonds [Ad]](https://www.pofex.com/images/smilies/Ad.gif)
pot $2
Flop
![The Ace of Hearts [Ah]](https://www.pofex.com/images/smilies/Ah.gif)
Checked to me, I bet $2. Folds around to BB who check raises all in for about $21 more.
If he has a set, i'm down to 9 outs, if he has AT, same thing. He is a bit loose and pretty aggressive with some moderately weak hands but I haven't seen him do anything stupid. Do you call? Do you check that flop and take a free card?