Thank you for noticing, Bobby baby. There's no greater feeling than watching a man truly enjoy his diminished status. You see, there is so much potential here for kinkier role-play and more intense physical and psychological play.
I want you to slide that large, beautiful cock of yours inside of one of these beautiful cases and lock it securely. Feel the weight pressing down on your sensitive member as it encases your entire length, trapping your throbbing meat inside. I want you to slide it into place until you hear that satisfying "snap" indicating that it's fully closed.
You really love that little 'snap' ...don't you. When did you first discover how much you enjoy punishing sensitive penises by trapping them in snug fitting cages that prevent erections?
Oh, Bobby, you have no idea how long I've been craving this moment, imagining the look of desperation on your face as you surrender your precious cock to my whims. The first time I saw that handsome young body of yours, I knew I had to tame that wild beast between your legs. And now, finally, here we are, ready to embark on a journey of eternal chastity together.