3boys, animal_ears, bara, black_hair, blush, brown_hair, bursting_pectorals, clenched_hands, closed_eyes, closed_mouth, dark-skinned_male, dark_skin, dog_boy, dog_ears, flying_button, glasses, large_pectorals, male_focus, mugi_(rio_mukiniki), multiple_boys, muscular, muscular_male, nipples, original, partially_unbuttoned, pectoral_cleavage, pectorals, rio_mukiniki, shirt, short_hair, smile, upper_body, white_shirt