2boys, animal_ears, arms_at_sides, bara, between_pectorals, blush, completely_nude, couple, dog_boy, dog_ears, dog_tail, feet_out_of_frame, from_side, head_between_pecs, height_difference, hug, kekkai_sensen, kemonomimi_mode, klaus_von_reinhertz, large_pectorals, leonardo_watch, long_sideburns, looking_at_another, male_focus, mature_male, multiple_boys, muscular, muscular_male, nipples, no_eyewear, nore_(boosuke), nude, pectoral_squeeze, pectorals, short_hair, sideburns, size_difference, tail, tusks, yaoi