FURVERT!

2:3 accidental_transformation animal_genitalia animal_penis anus awarebear balls base_two_layout becoming_erect belly_slapping_masturbation bodily_fluids breath breathing_noises butt comic conjoined_speech_bubble contact_onomatopoeia cracking cracking_joints creaking dialogue different_sound_effects digital_media_(artwork)dock_(anatomy)ear_transformation english_text equid equine equine_anus equine_genitalia equine_penis erection feral flared_penis foot_transformation fur fur_growth genital_fluids genital_transformation genitals growth hair hair_growth hi_res hooves horse impact_onomatopoeia male mammal masturbation medial_ring muscle_growth nude onomatopoeia overdose pain panting penile penile_masturbation penis penis_tip plap pop_(sound_effect)precum puffy_anus quadruped sheath shocked side_effects six_frame_image solo sound_effects speech_bubble standing tail tail_growth text transformation transformation_sequence unsheathing verbal_reaction_to_tf