I've dabbled in several fandoms, but not as much as I've been involved in Supernatural. I didn't really notice until you said something, but I think you may be right. I, personally, love the money shot in adult fiction -- it's that fetishization (fetishing?) of masculinity, the very physical, visual, affirmation of the essential difference that makes men who they are. It's visceral and beautiful and sexy. I mean, sometimes, I'll prefer the jackoff session to actual sex, just so I can watch my guy come, and it sets me off like crazy; I'll come with him, or only seconds behind.

Supernatural is pretty much all about the fetishization of masculinity : Dean's music, the classic muscle car, the leather, the adolescent fantasy of eternal youth and lack of responsibility and always being on the road, Dean's very aggressive and blatant and desperate show of heterosexuality, the lack of female characters. I love it.

And because a lot of the sex happens between brothers -- there's that element of a shared childhood, when boys are still wild and untamed and messy and uninhibited. Sex with your brother isn't exactly rare, although I think most guys won't talk about it.. that initiation into sex, and the kind of go-with-it sweat/saliva/semen combo that becomes almost mystical in my mind. I love to just roll around in it (metaphorically, naturally) and celebrate it and see/feel/smell/taste enjoy that like whoah.

I'm kinda tired and rambling, so.. sorry if that makes absolutely no sense. :)