2girls, arm_behind_head, armpits, arms_behind_head, arms_up, black_leotard, blue_hair, blue_ribbon, blunt_bangs, blush, breasts, cleavage, detached_collar, fake_tail, hair_ribbon, high_heels, kotonoha_akane, kotonoha_aoi, leotard, light_blue_hair, long_hair, looking_at_viewer, medium_breasts, multiple_girls, open_mouth, pink_eyes, pink_hair, playboy_bunny, rabbit_tail, red_ribbon, ribbon, siblings, sisters, strapless, strapless_leotard, tail, thighhighs, torisan, voiceroid, wrist_cuffs