FURVERT!

animal_genitalia animal_penis anus backsack balls butt cutie_mark digital_media_(artwork)equid equine equine_genitalia equine_penis erection fan_character feral genitals hasbro hi_res horn knoop knooper looking_back lying male mammal my_little_pony mythological_creature mythological_equine mythology on_back penis presenting signature solo unicorn whoop