白と黒の双子姫　黒姫騎乗位

(masterpiece, best quality, great:1.3), illustration, CG, from below, girl spread legs, (sex:1.4), vaginal penis, man in below, testicles, nsfw, completely nude, (blush)++, sweat, open mouth, long hair, (black hair)+, purple eyes, medium breasts, delicate hair, disheveled hair, floating hair, detailed eyes, shiny hair, shiny skin, cinematic lighting, sweat, night, dark room, luxury room, lamp on the ceiling, bedroom, bed,