fate/stay night, fate (series)
tohsaka rin
marneko
1girl, ass, black hair, black thighhighs, blush, breasts, bulge, collarbone, erection, erection under clothes, futanari, implied futanari, long hair, long legs, looking at viewer, medium breasts, one-piece swimsuit, open mouth, school swimsuit, sitting, solo, spread legs, swimsuit, thighhighs