Not a sexual person yet?

Lately I’ve been concerned becuase I’m 16 years old and I have a boyfriend but I am just not a sexual person yet! I hear my friends at school talking about the things they do with guys and I can’t relate and I compare myself to them. I’ve only gone so far as kissing and I don’t know why but I am scared of anything more than kissing becuase I fear what I don’t know and also am scared that I will never enjoy anything sexual 😫😫😫 please give me any kind of advice or if you have experienced this same feeling as me xox