In a world where birth rates are plummeting, a young man takes it upon himself to reverse the trend by pumping out as much cum as possible. He strokes his cock furiously, determined to leave no sperm behind. His stepbrother, overhearing his plan, decides to join in, mounting him and taking control. The useless cocksman is overwhelmed as his step rides him hard, using him for her pleasure. He cums again and again, completely spent and eager to please, his population decline efforts now a futile, cuckolded mess.