FURVERT!

1:1 absurd_res anthro auto-fiona avian balls beak big_breasts bird bodily_fluids breast_expansion breasts clothing cum cybernetics cyborg doomington duo erection expansion eyewear female foreskin ftg_transformation fti_transformation gender_transformation genital_fluids genital_growth genitals growth gynomorph hi_res hirundinid humanoid_genitalia humanoid_penis intersex kerchief machine nipples non-mammal_balls non-mammal_breasts non-mammal_nipples nude oscine passerine penis penis_growth sega simple_background sonic_riders sonic_the_hedgehog_(series)swallow_(bird)transformation wave_the_swallow