Prompt

Use the man in the scene as @Source as the main Character. Keep his appearance consistent. Camera locked. He hooks the white briefs under his balls so his thick cock stays out and the pouch is jammed underneath. He spits in his palm, smears it over the head and shaft, and twists his fist up the length. He cums in heavy spurts across the briefs and his stomach, eyes on camera, evil grin, and does not turn away.