Know a guy two weeks. Been out with him 5 times - in that time we've done cinema, bowling, 2 meals, an all night drinking pubcrawl, walk on the beach and a music festival. We talk everyday via facebook and text. I really like him and he seems to really like me.
So last night he's driving us to another nice destination and I ask him what time I should tell my babysitter I'll be back. He says it's completely upto me - he will get me back any time I want. It goes back and forth a bit and he then says "well if your babysitter is staying all night, would you like to stay at my house?"
I know I've only known him two weeks but I wanted to. I agreed.
After our date we go back to his house, watch a DVD, have some drinks and then end up having sex 4 times over the course of the night 
he was very loving, lots of cuddles, constantly making sure I was ok, fetching me drinks etc and we had a really lovely night. He was still very loving towards me this morning.
He's just sent me a text now saying he had a fantastic night and had the best time ever. I'm thinking "shit, I've crossed the line from girlfriend material to fuck buddy material". Am I over thinking it or have I blown any chance of a real relationship with this guy?