FURVERT!

2005 anthro anus backsack balls big_penis biped blue_eyes butt dock_(anatomy)equid equine erection genitals horn huge_penis hyper hyper_genitalia hyper_penis looking_back male mammal mythological_creature mythological_equine mythology nude open_mouth penis presenting presenting_hindquarters raised_tail signature solo standing tail unicorn unknown_artist unknown_artist_signature