Party Poker 0.25/0.50 Hold'em (9 handed)
Preflop: Hero is BB with
![The Ace of Spades [As]](https://www.pofex.com/images/smilies/As.gif)
![The Ace of Hearts [Ah]](https://www.pofex.com/images/smilies/Ah.gif)
UTG calls, 4 folds, CO calls, 1 fold, SB completes, Hero raises, UTG calls, CO calls, SB calls.
Flop: (8 SB)
![The Seven of Diamonds [7d]](https://www.pofex.com/images/smilies/7d.gif)
![The Two of Diamonds [2d]](https://www.pofex.com/images/smilies/2d.gif)
![The Five of Diamonds [5d]](https://www.pofex.com/images/smilies/5d.gif)
SB bets, Hero calls, UTG folds, CO calls.
Turn: (5.50 BB)
![The Ace of Diamonds [Ad]](https://www.pofex.com/images/smilies/Ad.gif)
SB bets, Hero calls, CO raises, SB 3-bets, Hero ?????
Obviously, I don't have the flush, and both of them do. And I'm not closing the action if I call, so I could be looking at an additional 3BB to see the river if CO caps it. OTOH, if the board pairs on the river, I take down a pretty good-sized pot, and I calculate 10 outs to either a full house or quads (3 each of 7's, 2's, 5's and 1 Ace). And if I hit the river, I'll almost certainly get at least a couple more bets out of each of them, since players at this level aren't going to lay down a flush.
So, would you call it here?