I met this guy in a nightclub a few weeks ago, i was instantly attracted to him and as he was to me. This guy recognised me from seeing me out before and asked if he could have my number. We went out once for a drink and I ended up going back to his house and sleeping with him on the first night. The only problem I got is that this guy is very experienced in the bedroom department and expects me to be the same, I find the things that turn him on quite filthy and he has tried to do a couple of these positions on me and I have allowed him to.

Well if you are not enjoying it, tell him, be tactful and give him other positions that you do like.  No guy should expect a woman to be as experienced as him.  In fact I would be seriously worried if a woman was very experienced in bed, it would mean she's had it away with loads of other blokes, the very thought would turn my stomach. 

So I'm not sure why he would expect you to be experienced.  This guy has obviously took off without consulting you, or checking whether you are enjoying the sex. Which I think is rather selfish of him.  But also you have a responsibility to let him know you're not enjoying it and offer a few alternatives.  Use your female communication skills, it's a learning process for you, you may make some mistakes at first but will learn.

He also texts messages telling me what he would like to do to me in the bedroom which I find a little embarrassing but I don't want to tell him as I like him to much.

Why do you like him so much if he does things you don't want.  You have got to tell him, and if he doesn't like what you say, then he was obviously a waste of time anyway.  You can't have a relationship where only he is happy, and only he gets to do the things he wants to do.  You have got to at least work out a compromise if not abandon all the things you don't want to do.

Do you think this guy is using me for sex as all he wants to do is take me home and have sex and texts me sexual things. I would like a bit more than just sex out of our relationship. Help I don't know what to do?

Unfortunately it sounds like it to me, in your message to me, you don't mention much else other than sex, apart from a nightclub meeting and a drink.  It seems like he is having his cake and eating it, and you are not getting any cake in return.  I never advise having sex with a bloke until you have had a couple of dates, that way you can weed out the ones that just want sex with the ones that want sex and a relationship.