Rule 34 Dev - 2021 ass big_breasts big_butt big_lips bimbo bimbo_feral bimbofication bimbony black_hair blue_body blue_lips breast_expansion breasts busty_feral butt_expansion dialogue english_text equid equine expansion female feral growth hair hi_res horse huge_breasts huge_lips human human_to_feral lip_expansion lips mammal my_little_pony pony sequence simple_background solo species_transformation spidersvice surprise tail_growth text thick_lips transformation|12672353112