Rule 34 Dev - 3gs anthro areola biped bodily_fluids boss_monster_(undertale) bovid breasts caprine duo erection eyewear female genital_fluids genitals glasses goat heart_symbol hi_res male male/female mammal narrowed_eyes nipples oral oral_penetration penetration penile penile_penetration penis precum sex sweat toriel undertale_(series)|11180367144