Masterpiece,high quality,最high quality,Ultra-high resolution

masterpiece,high quality,最high quality,Ultra-high resolution,15-year-old boy,short hair,Brown Hair,Brown eyes,Healthy burnt skin,topless,Completely naked,barefoot,Shonen Focus,The whole body of the boy,Only the boy sits with his legs apart,Boy shows off his erect penis,Outdoor,Night Park,Two people in front of the boy、A man stands behind the boy,The angle of the shot shows only the legs of the man in front and the man in the back,Boy's hands behind his head,Sweat,Moderate muscle,Embarrassed expression,R-18