A chastity cage

In the box in front of you is a clean metal chastity cage, about medium size.

Beside the cage, there nothing in the box, no key or anything else.

With one hand still around your penis, you reach out with the other and grab the cage. You feel your dick pulsate as your hand runs around the clean, cool metal bars. Your heart beats faster. Why did Emily have this under her bed?
Your hand shaking, you take the cage and hold it next to your dick. Your errect penis is more than twice the size but yet you wonder...
Before you know it, you get up, and make your way to the kitchen. Moments later you´re back, a pack of ice in your hand. You dont plan on locking the cage or something like that, you just want to see if it fits...how it feels.
You´ve seen some porn with chastity cages and never knew how they felt. You take a deep breath-than you put the bag of ice on your errect cock.

It´s a bit ainful, but it works. After a minute or so, your dick is soft again, and after a couple more seconds pass, its even smaller, reduced by the cold to around 3 inches.

Hands still shaking, you grab the ring of the cage, an put it around your balls and your penis. Its tight, but it fits. Then you take the second part, the metal cage, and slowly put it on.
The cold bars push against your dick but it fits-perfectly.
You feel your dick trying to get hard again, the situation made you hornier than you thought.
Kneeling there, almost locked, naked in your roommates room.

Then something sends a cold wave of shock through your body. The apartement door opens, Emily must be coming home.
You flinch, and then it happens. Through the sudden motion, you push the cage up just a bit more-and it locks.

With a silent click, there was no turing back. For a second you just sit there, looking at the cage now firmly locked around your cock. Then you quickly get up.
In seconds, you wrap the towel around you and make your way to the door. Emily must be in the kitchen, she usually brought groceries after going for a run, and you use this window to make your way t o the bathroom.
You lock the door and catch your breath.
Then you drop your towel and look at yourself. Your large dick, proudly errected just minutes ago, was now locked, and you dont have the key, nor any idea where a key would bey. You curse to yourself.

Your hand wanders down and youtest how the cage feels. It doesnt hurt, at least not right now, but it´s not the best feeling either.
You curse again, why did you try on that stupid cage. And why did Emily have something like that just laying around without the key next to it.
Shaking your head, you decide to take a shower and push your thoughts away, right now you wont find a solution either way.