9-handed, CO is loose pf, but mostly passive. UTG +2 is somewhat creative, has taken the lead away from me on a few previous hands...

Preflop: I am Button with 7c6c
2 folds UTG+2 calls, 2 folds, CO Calls, HERO calls, SB Completes, BB Checks

Flop: (5 SB) 2s 6d 7s (4 players)
UTG+2 Checks, HERO bets, SB folds, BB folds, UTG +1 Calls, CO Calls.

Turn: (4 BB) 5h (3 players)
UTG +2 Bets, CO Raises, HERO???