Milk

Sally looked down at your caged cock and realized the issue. She took off in a hurry leaving you there to be tortured. She returned in about 15 minutes with a glass of milk and another device. “Shoulda told me you were a sissy, we coulda saved some time.” She hooked up a new tube that went directly around your cage and began to suck. She then told you to drink the milk. You do so and feel a pulse in you cock and your nipples. Just as you are about to cum you feel something play with your ass. It was Sally fitting the tube up there!

The machine she brought wasn’t connected to the milk machine it was just to shoot your own cum up your ass! “That’s the magic of our milk.” Sally said “as long as it cycles through your milk or your cum it helps the process along smoothly. It’ll take a few weeks before your tits can make their own milk without it. But don’t worry, we’ll get you there.

The pain was starting to get intense and the pleasure of cumming was replaced by pain as well. But you noticed that after awhile you were producing small streams of milk. Not only that, but your breasts were growing!