A very mature man, in his 60s or older, with a lean yet muscular body

A very mature man, in his 60s or older, with a lean yet muscular body. He has a hard erect penis and well-defined muscles despite his age. His physique is slim but shows clear muscle definition. His face and body are marked with visible wrinkles, emphasizing his age and experience. His stance is confident, with an intense gaze that conveys both wisdom and desire. Focus on the close-up of his body, highlighting his mature, toned appearance and the wrinkles that add character.