I've been searching for a while for a body mod, or replacer that adds muscle to the male body, but to no avail I haven't found anything. I'm not looking for nudity, or anyting profane, but I guess I'd take it as a last resort. So, you guys know of any?

There are two male body replacers: Breeze's and Robert's. Both have nvde and underwear versions. You can find the downloads at FO3Nexus.

Oh thanks, I didn't come by these the first search through, but I found them now.