Is it normal to be sexually obsessed with a guy i've just met?

I met this guy two days ago in a club - we made out loads, he came back to mine, he fingered me, I gave him head. He came back to mine the next night, I was on my period so nothing really happened. Thing is, I can't get him out of my head. He seems like a nice enough guy but it's not even that - hes just so hot. Not just physically, but at making out and sexual stuff (what we've done so far anyway). I'm just sure he'll be amazing in bed. Now I can't stop thinking about him - after he left I literally smelt the pillow he was lying on and masturbated like 5 times and I'm still ridiculously horny. I don't want a relationship with him but I do want to sleep with him, alot, I've never felt this attracted to anyone ever before! Most guys would say I'm really hot (sounds arrogant but thats what they say) but I'm not even sure this guy is like into me, and I don't care, I just WANT HIM. This sort of behaviour is completely unlike me! His penis even seems to be quite small and I couldn't care less, the sexual chemistry is immense! I literally just got out of bed to stare at his picture on facebook, goddamn he is hot, this is mad behaviour right? What can I do to stop thinking about him? Cuz I know this is going to end badly but I don't know what to do...IIN? Or am I behaving like a horny lunatic?