I just got done watching Libidine, and I am not sure I would count that as "mainstream media". There was so much sex it felt like I was watching porn with plot. But I suppose this was more a product of its time. I was pleasantly surprised however that the zoophile relationship, which plays a central part in the movie, was the only relationship portrayed in a positive light. The girl showed genuine love for her animal partner, and the sex scenes were strangely cute.