(masterpiece, high quality:1.2), explicit, solo, 1boy, male, white human male body, middle aged, average body, short brown hair, hazel eyes, nude, he has an inviting caring expression on his face, large heavy equine testicles, equine penis shaft and flare with a canine penis knot at the base, knotted penis, long thick penis, penis focus, sitting spread eagle, dynamic lighting, cinematic 3D render, 8k