What's the right play?

[bav]

You have at least 7 outs, probably 9, maybe the 9 flush plus 3 or 6 more for the AJ overcards. If you have 15 outs you obviously gotta join in. If he flopped a set, you aren't very happy. But if he thought the hand was over and only flashed a single 9, I don't think he's got two of them OR two pair. So...

I'd call. But I won't call you names if you walk away. But I will think you ain't got much gamble.