How do I knock him off his feet?

We see each other probably once a week but text or talk probably 3 to 4 times a week. I have known him for about two months. I was really big on not losing my virginity till marriage but he got to me somehow and I lost my virginity to him (on my birthday). We didn't talk for about a week after I lost it. Then we talked again and I had sex again with him and I'm scared to call him because I don't know if he will answer or not and if he does answer I won't know what to say. Oh yeah uhhh I'm 16 and he's 20. But an amazing guy. He told me the first time we went out together that we should just be friends for now and see where that leads us. Well I'm scared its not going anywhere. He doesn't really show his friends he likes me but I think that's because he's at that stage in his life where he doesn't want to be in a relationship. And on his myspace under his WHO I WOULD LIKE TO MEET it says a girl who would knock me off my feet. I feel like I'm not that girl so can you help me to be that girl?
How do I knock him off his feet?
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