FURVERT!

anthro avian bird canid canine erection female foolmethrice fox gag genitals group hirundinid machine male mammal miles_prower multi_tail oscine passerine penetration penis robot sega size_difference smaller_male sonic_riders sonic_the_hedgehog_(series)swallow_(bird)tail tails_doll tentacles vaginal vaginal_penetration vulva wave_the_swallow