inoino, exs-tia, katsuragi marina, kouyoku senki exs-tia, game cg, large variant set, non-web source, official art, variant set, 1boy, 1girl, :o, ass, black pants, blue eyes, blue hair, blush, boots, breasts, buttjob, clothes lift, detached sleeves, elbow gloves, exs-tia (exs-tia 3), floating hair, from behind, girl on top, gloves, grabbing another's ass, groping, hair intakes, headgear, hetero, indoors, large breasts, leotard, long hair, looking at viewer, looking back, magical girl, miniskirt, open mouth, pants, purple hair, purple skirt, reverse cowgirl position, shiny skin, sitting, sitting on person, skirt, skirt lift, solo focus, straddling, thighhighs, very long hair, white gloves, white leotard