Really need advice!!

I was hanging out with a friend of mine and we passed by a guy who was with a bunch of his friends and he came up and hugged her, said hi and then had to go. I asked who he was, she said it was her cousin and I said I thought he was cute. Said I wanted to get with him so she immediately texted him and he said he was down too. She gave him my number, he texted me and we texted a bit that night, agreeing that he would come over on Saturday night (two nights from then). I just wanted to have sex with him, or so I thought, because I actually didn't know him at all. Didn't even really remember what he looked like till he showed up at my place. He came in and it was so natural. We talked for like 15 minutes, not forced at all, and we had really good chemistry. We then had sex for 3 solid hours, and it was the most amazing, mind blowing sex I've ever had. We just had such amazing chemistry. It was fun, we laughed and joked, it was hot and steamy and all together fantastic. After we finished, he helped me cleaned up, we talked some more then he left to see his friends and said "hit me up again". I'm realizing though that I might want more from this than just sex. And the problem is that I initiated the whole thing so for me to spring from that into hey let's try dating now, I'm worried it will scare him away because I don't know if he wants a relationship. I'm not in love or anything, don't even LIKE him yet, just recognize that I really could and want to see if it could be more than just amazing sex. What do I do? I don't want to lose the sex but I also don't just want to hook up with him.