Here is a little fantasy that is closely based on our current situation and has actual potential to come true.
My wife approached me to say that she had set up another date with her boyfriend Derek for the following day and that they'd be getting together at the place where he had been house sitting for a friend less than five minutes from our home. My heart tumbled into my gut and there was an immediate swelling in my pants.
"This time you'll be in your new cage for the entire day and also during my date" she beamed with an evil grin.
She gave my growing hard on a playful tap.
"I might even release you and let you cum when he's done with me."
My heart pounded wildly in my chest as I wondered how I'd be able to handle knowing that she is being enjoyed by another man and not touch my cock. I couldn't help but constantly stroke it the entire day of and during her dates in the past (no cumming, that's for her to decide when, where and how) but this time I would be helplessly straining against the confines of my hard, steel cage.
The next morning before I headed off to work she called me to the bedroom and ordered me to stand before her and drop my pants and underwear as she sat on the edge of our bed. She attempted to place the cage on me but I quickly began to get hard, making it impossible to fit into it.
"Well this isn't going to work!" She laughed.
She placed the cage back in its case and handed it to me.
"You had better have this on before you get to work and I'm going to need a picture of it in place or you will not receive any screenshots of our sexting today. I also won't be sending updates, pictures or videos while I'm with him". She warned sternly. "You definitely won't be allowed to cum anytime soon".
She clasped the silver necklace on which the small key hung behind her neck as I kissed her goodbye.
About half way to work I felt my hard on finally soften and I pulled over in an open parking lot and undid my pants, pulling them down to my knees. I scrambled to get the case open and quickly force my cock I to the cold cage and clasp the ring around my shaft and balls, snapping the tiny padlock shut. I took a quick photo and sent it to my wife. She responded immediately.
"That's a good boy. And don't even think about removing that cage or you'll experience some REAL punishment."
"Yes my love" I responded.
As I approached my work it suddenly dawned on me that the company I work for supplies uniforms and I'd be changing with 8-10 other guys and I'm wearing a steel cage on my cock. I decided to play it cool and face away from everyone as much as possible as I undressed, changing my pants first in hopes that my shirt covered any signs of the chastity device. Much to my relief the cage was barely noticeable under my boxers and I went about my day.