Weird situation involving boy scouts and an inappropriate crush. Anybody had a similar situation, or any ideas for dealing with this?

I'm 16 and an active boy scout, I've held leadership positions in my troop and am generally respected by other scouts. I am also a closeted pansexual. There is a younger scout in the troop (like 12 or 13) who seems to have a pretty serious crush on me. He tries to make physical contact with me any chance he gets, he makes sexual jokes that are usually directed at me. He doesn't seem to behave like this with other people, so I'm pretty certain he's not just a very touchy/physical person. I try to dismiss his advances because I think that they're inappropriate because of his age and the age difference between us. The troop I'm in isn't super homophobic as a whole, but there are individual kids who are highly homophobic. I want to tell him that his behavior is inappropriate and that he should stop, but I don't want to make it seem like my reason for rejecting it is homophobic or that there is anything wrong with how he feels. It would also be nice if I could let him know that he's not the only queer kid in the troop and that there is some support, but I don't necessarily want to out myself. Does anybody have any ideas?