Another Cruel Experiment on His Cock

The Mistress has decided that his cock deserves a very special kind of attention. She slowly pushes the dilator deeper into him, stretching him from the inside while watching every nervous reaction with obvious amusement. His discomfort only makes her more curious about how much he can take.
Once he is already completely overwhelmed, she adds the Hitachi to the game. Now his cock is being worked from both sides at once. The dilator remains inside while the powerful vibration drives him closer and closer to the edge. He squirms, moans and tries to keep some control, but his Mistress has no intention of making that easy for him.
She keeps the pressure exactly where she wants it until his body finally gives up the fight. With the dilator still deep inside and the Hitachi working on his cock, he explodes into a powerful orgasm while his Mistress calmly enjoys the result of her nasty little experiment.