How to... Ask for Sex?

I’m a teenager - 100% a virgin of course - and I was just kinda wondering how your supposed to like tell someone you want to have sex? I understand the whole “give him some hints” and “wait for the right person and moment and it’ll all work out” or like wait for a romantic time and sort of... ease into it or, whatever! But I’m not going to lie, I really just wish I could tell the guy what I’d like to do but like... I don’t know if he’ll want to as well or if he’ll think I’m weird or desperate. I suppose I’m just ridiculously afraid of rejection and I know it’s pathetic. But I really just wanna do something with him! Ooch, advice??😅😂