FURVERT!

abs anatomically_correct anatomically_correct_anus anthro anus athletic athletic_male backsack balls biceps black_border border butt clenched_teeth clothing english_text equid equine equine_anus feminization flexing genitals genitals_shrinking hi_res horse male mammal muscle_loss muscular muscular_male nipples pecs penis penis_shrinking personality_change presenting presenting_anus ruxvel saggy_balls shrinking size_transformation solo speech_change submissive submissive_male teeth text transformation underwear