I was playing the 3/6 Stud game at the Bicycle Casino yesterday, so since this is live, I appologize for the lack of detail and conversion. A very loose, passive table. I had been there about 2.5-3 hours and was up 14BB. I had showed myself to be a strong player, and that if I was in there, I had a hand. Only one new player was involved in this hand, and it was his fist at this table.
Three players fold to me I have (99)7, with an 8 and J behind me, I complete to $3. To my dismay, all thre players behind call.
4th Street: I catch another 7 and the high, so I lead out with a double bet, $6. No one's board is in any way threatening, and coordinated, yet all three call again. Same scenario, I catch a J and still have the high and lead out with three callers.
At this point, the biggest threat is a three straight (346, yeah!), and someone else with a two flush showing. 6th Street brings me no help but gives the new player a second Ace on his board and a third club. He is now high with two aces showing. "Check to three sevens" he says. I take a moment to think, and decided he does not have a flush, aces up at best, but I wouldnt be surprised to find aces only. In an attempt to thin out the field (two players between us) with him now having a scary board too, I bet. Still the two players behind me call, and the new guy raises. OK, now this aint good. I have not seen any nines or sevens come out, and at this point the pot's way too huge to fold, so I call as do the other two (I still can't figure them for any kind of hand). Aces check to me again, and I look down to see a glorious nine on the river for nines full of sevens. Of course I bet and only get two callers.
The one guy on my immediate left had aces only, the new guys (aces on board) had aces up and a four flush, the guy that folded had a straight draw.

I know I did not play this as well as could be, but my real question is how aggressive do you get with this kind of hand against loose players who have no board?

You got played my friend.

Your first mistake was playing that hand in the first place, in that position.

Your second mistake is betting into a pair of aces on board. Anytime someone verbally tells you what they think your hand is and checks to you, they can beat that hand they stated (which you didnt even have by the way), or have many many outs to beat it. The fact that you won the hand is moot - it was a bad bet that the guy was banking on you making, so he could get in the check-raise.

Nice river though. Glad to see you didnt try to check-raise. 8)

Assuming your hand is live, I like the 3rd street completion.

But I check behind the aces on 6th. Betting is unlikely to protect your hand.

You played the hand just fine in all aspects except for on Sixth street. His comment was telling you that he could beat three sevens, BUT THIS DOES NOT NECESSARILY MEAN HE CAN. However, you can't just put him on a pair of aces, you have to know he has either Aces Up or a four flush. I would probably just check and call one bet if anyone else bets on sixth street, as your outs were live in a large pot. If no improvement on the river, fold, on way 9's and 7's are good.

P.S. I think that the new guy with the open aces on sixth made an EXCELLENT play on you, as I think the only way he would make that comment and then check raise you is if he had you on a concealed pair the whole time. Even with his Aces up and four-flush, he still is probably not checkraising you if he thinks you have a seven in the hole, because if you did, then you could already have a boat and he would be drawing to two or four outs (depending on his other pair). Thus, I think he read you for a concealed pair and really outplayed you on this particular hand. This does not mean that you are a bad player by any means; rather you can learn from it and maybe use that play yourself....