FURVERT!

2:3 anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_humanoid animal_penis anthro balls big_penis biped butt butt_grab comic comic_panel dialogue duo english_text equid equid_humanoid equine equine_balls equine_genitalia equine_humanoid equine_penis genitals grabbing hand_on_butt hi_res horse horse_humanoid horse_tail hot_dogging human_to_anthro humanoid humanoid_on_anthro male male/male male_anthro male_humanoid mammal mammal_humanoid medial_ring penis selezneva sex species_transformation standing text transformation transformation_sequence transformation_through_sex