Rule 34 Dev - anthro balls big_balls big_penis blue_background bodily_fluids breath brown_body brown_fur cum cumshot dialogue ejaculation equid equine erection exsys fur genital_fluids genitals hair hair_over_eyes hi_res horse male mammal masturbation medial_ring nude penile penile_masturbation penis profanity simple_background snorting solo|7918284008