masterpiece, best quality, 8k, ultra-detailed, sharp focus, sci-fi fantasy, my little pony style, anthro pony, equine anatomy, 1girl, original character, Nova Starfall, alicorn, tall muscular build, custom gradient coat, (crimson red to molten gold), flowing metallic silver mane with golden streaks, glowing amber eyes, cutie mark of a supernova, adult mare, standing on a crumbling stone bridge above a lava river, bent forward with hooves on a broken pillar, rear view, low angle, extreme close-up on huge round plump ass, hooves spreading buttocks wide, exposing detailed wet pussy and tight anus, magical crimson tentacles from her horn penetrating both holes, double penetration, thick glowing golden lubricant dripping, looking back over shoulder with half-lidded eyes, deep blush, open mouth with drool, ahegao expression, background ancient ruined castle, erupting volcanoes, smoky sky, warm orange and red volumetric lighting, rim lights on glossy fur, shallow depth of field, hyper-detailed anatomy, soft shadows, floating embers, super sexy