FURVERT!

all_fours amy_rose anthro anus barn bestiality big_penis breasts bucket container doggystyle duo equid equine erection eulipotyphlan excito feet female feral from_behind_position genitals hay hedgehog hi_res hindpaw horse interspecies male male/female mammal monochrome nude paws penis sega sex sonic_the_hedgehog_(series)vein veiny_penis vulva