You check-raise or check-fold. If you bet here, you are trapping yourself with the hardest hand to fold on later streets (AA). You check, if it checks around to a late-pos player, then you can check-raise to knockout the field. A single bet here is not eliminating anyone. The idea with AA in this situation is to knock-out the field and/or not lose any more money. If you check, and it is 2 bets to you, then you can throw your aces away. The worst possible thing to do here is bet out, b/c everyone is going to call and you will have no idea where you stand. Check here everytime! If the next player bets, and everyone calls, i would just call, again, bc a raise is going to get you nowhere. Whatever you do, if you are still in the hand at the turn, check again. If you hit the straight, no one is calling, if you hit an Ace, try to get to the river as cheaply as possible.