In the privacy of his room, a mature, well-endowed man delights in his own company, his thick, veiny cock throbbing as he strokes it with practiced expertise. The fat cock glistens with precum, the ample foreskin sliding over the sensitive tip. His heavy balls swing gently with each pump, his breathing growing heavier as he nears climax. The sight of his large belly jiggling with each thrust only adds to his arousal.