Prompt:

side view, a duo, a couple, duo focused, bdsm, cute mature female sex with a boy in cowgirl postion, he is chained and the female pulls the chain on his neck, she looks him lovely, she laughs, she has clean body, she has long pink hair, she has cat ears, she has red heart eyes, he has an abs, he is thin, he has big injuries on his chest, he is shivering hard, he has a pale skin, he has skyblue hair, he rolls his blue eyes, he is painfully crying, dark cave background, there is dark red stains on the floor, there are skulls, featured on pixiv, sharp clean lines, sharp clear focus, 4k anime illustration, realistic light and shadow, world-class masterpiece, best quality, overall, sharp anime proportions, anime art, glossy anime, dynamic light and shadow,