How do I get what I want out of this now?

Okay here is the deal, and I really don’t care if you think this was promiscuous of me or not, I just want some advice. I met this guy I had been seeing up at a restaurant, he brought his roommate, mind you this is after the guy I had been seeing decided we would make much better friends as there was absolutely no spark. Anyway me and his roommate hit it off right away, we went and hung out, one thing led to another and oops we were in the sack. I think this guy is sweet and his is definitely a hottie. I don’t want to seem to overly eager to him but also don’t want to seem like a cold hearted ***** who was just looking for a good time. He is 6 years younger than me and probably in a different place than me, but I really want to have more than casual relations with him, what is the best approach to pique his interest?