Rule 34 Dev - 1boy arms_behind_back ass bara bdsm beard_stubble bodysuit boku_no_hero_academia bondage bound bound_wrists bubaigawara_jin facial_hair full_body greyscale long_sleeves looking_at_viewer lying male_focus mature_male monochrome muscular muscular_male mustache_stubble no_mask on_bed on_side short_hair smokerichi solo stitches stubble|19153636983