Friends with benefits

So I met this guy about a year ago and I met him through mutual friends (I had just gone through a breakup and I was looking for a rebound guy). We talked for a while just as friends, but then one night I was snap chatting him and the friend who introduced us and the friend who introduced us started accusing both of us of sending nudes to each other and then the guy and I just kind of laughed about it and then we started talking more about it and we realized both of us wanted it so we exchanged pics. We did that a lot for a while & we also sexted and then we started talking about hooking up. He’s 17 and I’m 16 (we’re both juniors in high school) so we haven’t really been able to hook up because we live with our parents and siblings. Okay so anyways that’s just the back story, but I really like this guy like a lot. And I would really like to have sex with him because I’m attracted to him. However, I’m fairly certain he just wants a no strings attached friends with benefits relationship and I understand that but part of me kinda thinks that if I hook up with him he’s going to be so into it that he will be over the friends with benefits thing. Am I dumb for thinking this? Should I just forget it? I don’t know what to do I need advice!!