Although i wouldn't call myself a 'metalhead' per se, i do catch myself YT'ing some songs from time to time...
Some 'Spineshank' here, a few of 'Ramstein' there... some songs of 'Slipknot'...
Funny enough; during my university-, and with that dorm-room years, i got hold of a housemate's home-made pornmovie-collection (hey, he dìd tell me "go ahead and copy what you like" when he lent me his external harddrive; he just failed to mention it was only for his movies and series, and not everything else... including his private folder called 'XXX'... ?), and when he and his girlfriend shot a movie, a lot of the times he had metal playing in the background...
So now whenever i hear metal, i always remember that guy's home-made sexvideo's, and wonder 'how would this fit under a homemade porn..?' ?