Explicit Retro 1990s anime screencap, hentai OVA style illustrating the theme "Secret visit to the office of the Royal Alchemist". Inside a dimly lit alchemist laboratory within a stone castle, a stunning 25-year-old Queen is penetrated by the Royal Alchemist. The Queen is naked, wearing only a golden diadem on her head. She has long silky green hair and highly detailed luminous amber eyes with intricate irises and many tiny sparkles, featuring soft digital airbrush blush on her cheeks and glossy detailed lips. The Royal Alchemist is lying under her, wearing a historical Renaissance black velvet doublet jacket with padded shoulders and gold trim. He actively inserts his massive, hyper-detailed erect penis into her vagina between her raised legs. The explicit penetration scene clearly shows her fluid splashes, and highly exaggerated anime sexual anatomy, all rendered with hand-drawn ink line-art, retro cell-shading with flat sharp shadows, and angular sharp white highlights on her hair. In the sharp close-up foreground, a glass chemical vial sits on a wooden workbench with the handwritten label "viagratus" clearly visible on the vial. The background features cluttered shelves with glowing potions, old grimoires, and stone walls with volumetric shadows. Masterpiece.