>>819723I knew a girl in highschool who was obsessed with her dog's penis. Maybe it started from a place of curiosity when she lacked proper education about sex? I never really probed her about it, too awkward of a topic.
For myself personally, the appeal comes at least in part from the animalistic nature of dogs; it's hard to explain anything further, only that there must be something more because I don't feel this way about most other animals. To be clear, I would never do anything sexual with a real dog, it's just one of those warped fantasies, like getting raped.