It's interesting you should post this because I recently started reading confessions about people that fuck their pets. You honestly wouldn't believe the mind-set of these people. Granted there are gay people and those that have sex with shemale- but having sex with an animal?

One guy had his dog (a pit bull) suck his dick while he recorded it (so its a POV). The dog started to nibble his dong and the guy started to yank its collar (supposedly this calms the dog down).
Another guy said he was having problems giving his bitch (a lab) vag sex because it got fixed and this supposedly makes dogs vaginas shrink. He appealed to fellow animal molesters for help and you'd be surprised... even chicks we're giving him tips on what to do.