I trudged to the bathroom. I slowly shave my pubic area and my balls. Your penis looks bigger when there is no hair in the way, but soon it wouldn't matter. Soon my penis would be locked away. I briefly considered one last wank, but I heard my girlfriend call me from the bedroom. Reluctantly I walked back.
"Why did you put your pants back on, come on take it off." Slowly I complied. My penis felt a little stiff, I was on the verge of a semi. I hated to admit it, but the thought of being locked away was making me horny. She knelt in front of me, as if to suck me off but in her hand was a plastic cage. She has been planning this for a while obviously. With one hand she yanked me forward, balls first. I winced. First the plastic ring went over my penis and then one at a time she roughly forced by pulls up and through it, finally pulling the rest of the scrotum up too. My penis and balls looked normal except for the ring of plastic almost flush with body.
My girlfriend placed a dainty little kiss on the head of my penis and it twitched slightly. "Bye bye, little trouble maker, I will see you again but not soon." She took hold of my semi and painfully bent it over her fingers. I gasped but one scornful look, from the woman holding my genitals in her hands, told me I should shut up. She took the head of my penis and forced it into the bent cage. A weird sensation of unyielding plastic forced into the head of my penis caught me off guard. She continued to work my penis through, squashing it against the cage. By the time I looked down again my penis was fully encapsulated and she brought a small key to the cage and locked away my manhood. I prodded the cage with my hand and didn't feel much other than my cock try to strain against its prison.
She attached the key to a chain and hung it round her neck. She smiled at me. "Well I am glad that is finally done with, I am going out with some friends, you can clean up and get used to the new situation." Her smile only got larger and dripped venom and malice.
"Babe, when will you er..."
"When will I unlock you so we can have sex? You have only just put it on and you are already thinking about taking it off, you really are so ungrateful. Look, every time you pester me for sex, I feel less like having it, so stop whining and you might get unlocked in a couple of weeks."
"A couple of weeks!"
"Okay, three weeks, if you keep complaining. Anyway I am going now honey; don't wait up for me I will be late back." She picked up purse and left, locking the door. I stood their naked, my penis reduced to a point of pain and longing, begging for release that I just couldn't give it. Normally I would watch pornography, but my horniness was already causing me enough pain. I felt a pang of guilt for the times I masturbated before not thinking of my girlfriend; maybe I could have avoided this if I hadn't been such a selfish boyfriend. Maybe one day she would take the cage off if I proved to her I could behave properly, it was worth trying.
Right now though I would have given anything just to jerk off my imprisoned penis.