2girls arms_behind_back bdsm black_hair bondage bound bound_wrists box_tie breasts chinese_clothes clothed_male_nude_female eyes_closed forced gag hair_pull helpless humiliation imminent_death improvised_gag large_breasts monochrome multiple_boys multiple_girls nipple_bells nipple_piercing nipple_pull nude open_mouth peril piercing rope shibari short_hair spread_legs spreading_bar tagme torture weapon