FURVERT!

1:1 abdominal_bulge anthro anthro_pred belly big_belly bodily_fluids body_outline brown_body brown_fur cum digital_media_(artwork)ejaculation equid equine erection eyes_closed fully_inside fur genital_fluids genitals hi_res horse male mammal masturbating_pred masturbation medial_ring muscular muscular_male orgasm penis same_size_vore solo vein veiny_penis vore zyyphelze