I secretly want my guy friends to use me to satisfy their urges

I just feel like I wish I could tell anyone in person I want this without getting judged. I'm at university in a stem degree and have a really nice group of friends but I'm the only girl in the group. A lot of the guys haven't really had partners or done much and I can see they want to, and I'd love to let them use me for it. But I can't exactly say that as I'll get judged, I might lose friends and I don't really see any of them as potential partners, I just wouldn't mind helping them. I don't know, pretty tame confession I guess but I wanted to shout into the void and at least tell someone.