1girl animal_ear_fluff animal_ears ass ball_gag bangs bdsm black_blindfold black_thighhighs blindfold blonde_hair bondage bound breasts collar feet feet_up flat_chest fox_ears fox_girl fox_tail gag gagged hair_between_eyes hand_on_own_thigh kokonoe_tsubaki latex latex_leotard latex_thighhighs legs_up leotard long_hair lying multiple_tails navel nipples o-ring on_back on_bed original small_breasts solo spread_legs tail thighhighs two_tails v-shaped_eyebrows yoshizawa_tsubaki