2boys, alternate_pectoral_size, bara, chest_hair, completely_nude, couple, eye_contact, furrification, furry, furry_male, furry_with_non-furry, greyscale, hug, hug_from_behind, interspecies, kekkai_sensen, large_pectorals, looking_at_another, male_focus, mature_male, monochrome, multiple_boys, muscular, muscular_male, nore_(boosuke), nude, pectorals, short_hair, sideburns, smile, steven_a._starphase, upper_body, whiskers, wolf_boy, yaoi