Rule 34 Dev - 2boys anal black_hair body_markings clothed_sex clothing demon_slayer dick_root earrings facial_markings from_behind gay green_eyes grey_skin gyutaro headlock human kimetsu_no_yaiba long_hair_male male male_on_male male_only male_pubic_hair meat_worm muscular_male open_shirt pants_down penis pubes pubic_hair ribs school_uniform silver_hair smile sound_effects sweat tongue_out two_tone_hair uzui_tengen veiny_muscles white_hair yaoi|5867399056