Bored and horny, a husband with a massive, straight cock decides to indulge in some solo fun while his wife is out. He retrieves his trusty F-Machine, lubes up his enormous dick, and positions himself bent over, ready for an intense anal session. The machine's piston-like thrusts slide the silicone sleeve along his throbbing length, mimicking the tightness of a willing asshole. He groans, fucking the machine with gusto, his balls slapping against it as he pounds away, seeking release.