Advice needed urgently

So I really like this guy that's in my class and like we always hangout and he acts like he likes me, but when I sorta asked him he was like I don't want a relationship, but then later on he asked me if I wanted to be his friend with benefits and tbh I really want to say yes because he really gets me all worked up but I'm a virgin and literally have no sexual experiences, but I really know I like him. I just don't know if I should say yes, I'm sixteen and he's 18.