1girl ass ball black_thighhighs blue_background blush bouncing_breasts breasts brown_hair commentary_request elbow_gloves exercise_ball from_behind gloves gradient_background hair_between_eyes hair_ribbon kantai_collection long_hair looking_at_viewer looking_back medium_breasts nude open_mouth ribbon shiny_skin single_glove skindentation solo thighhighs tone_(kancolle) triangle_mouth twintails white_background white_ribbon winter_sky yellow_eyes