Rule 34 Dev - 1boy ai_generated armpit_hair artist_name ass back bangs bara bed black_hair blue_eyes fundoshi goldenfieldszho japanese_clothes large_pectorals looking_at_viewer looking_back lying male_focus male_only male_underwear muscular muscular_male nipples on_bed on_stomach pectorals pillow short_hair smile solo solo_leveling sung_jin_woo sweat thick_thighs thighs twitter_username underwear|12563430488