In the royal alchemy chamber, a secret visit. A young, beautiful queen with black hair tied in a neat bun, wearing a golden crown set with pink gemstones, is completely naked and sitting astride the royal alchemist in a cowgirl position, with her right leg raised high. The old, gray-haired alchemist, wearing a purple robe with gold trim, lies on his back, his thick cock is deeply embedded in her pussy, and copious spurts of white semen shoot out of her vagina and run down her thigh and stomach. The alchemist holds her by her raised leg. Detailed classic 90s hentai anime style, bright colors, shiny skin, dynamic splashes of fluid, expressive eyes, detailed faces. The background is the alchemist’s dark study, wooden bookcases, shelves with colorful flasks and potions, alchemical equipment, a large window, warm lighting, an atmosphere of secret passion—a masterpiece, best quality, ultra-detailed.