1girl alternate_costume ass ass_grab ass_support bikini blue_eyes blue_hair blush commentary_request embarrassed from_behind grabbing_own_ass hair_ribbon highres kantai_collection katsuragi_(kancolle) long_hair looking_at_viewer looking_back midriff photoshop_(medium) ponytail ribbon skindentation solo swimsuit thighhighs thong thong_bikini vent_arbre white_bikini white_ribbon