Rule 34 Dev - alphys anthro anus balls bent_over bodily_fluids bottomless clothed clothing coat duo english_text female genitals goz-o hi_res human lab_coat lab_coat_only male male/female mammal offscreen_male penis pussy reptile scalie speech_bubble sweat text third-party_edit topwear undertale undertale_(series) vein veiny_penis|13430624800