I have secured this chastity slave to the bondage bed, equipped with a gas mask and breathing through a bubbler. The fucking machine is fixed to the bed, aligned with the slave's exposed and ready hole, primed for penetration by two awaiting cocks. Having applied lube, I insert the first cock into the slave and start the machine, observing and enjoying the scene as the slave is fucked. I take a significantly larger cock and replaces the first, continuing to stretch and fuck the slave in preparation for my fist.