FURVERT!

5_fingers anatomically_correct anatomically_correct_anus anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anus backsack balls big_balls big_flare big_penis big_unflared_glans biped brown_body butt close-up digital_media_(artwork)equid equine equine_anus equine_balls equine_genitalia equine_penis erection fingers flared_penis full-length_portrait fully_sheathed genitals glans green_eyes hair hi_res hooves horse male mammal medial_ring model_sheet mottled mottled_genitalia mottled_penis muscular muscular_anthro muscular_male penis penis_tip perineum piiunivers portrait sheath smile smiling_at_viewer solo unflared unguligrade vein veiny_penis