2girls, arms_behind_back, blue_eyes, blue_hair, blue_nails, blush, bound, bound_arms, box, breasts, cardboard_box, collarbone, feet, from_above, full_body, gag, gagged, gusset, hair_ornament, hair_over_one_eye, hair_ribbon, hairband, hairclip, improvised_gag, in_box, in_container, lolita_hairband, looking_at_viewer, lying, medium_breasts, multiple_girls, nail_polish, navel, navel_piercing, nipple_bar, nipple_piercing, nipples, on_back, pantyhose, piercing, pink_eyes, pink_hair, pink_ribbon, purple_ribbon, ribbon, short_hair, siblings, sisters, spread_legs, tape, tape_gag, thighband_pantyhose, toenail_polish, toenails, topless, twins, uncensored, weibo_username, white_legwear, x_hair_ornament