When I got to my room, I checked my phone, and there was a message from my GF: a photo of her sitting in her bed, naked, with her legs crossed just enough to block the view and her hands covering her breasts, between which... there was a key hanging on a neck chain. I knew it was THAT key, the one I needed... I threw my clothes off and ran into the shower, putting the phone on a rack in the shower cabin, setting it so the screen wouldn't turn off. I ran the water and just looked, starting to tug on the cage. It was tight—so tight that I saw my balls turning a way darker color. I felt how my suppressed erection was making the cage pull a bit on my balls, and to my surprise, it got me even hornier. Seeing that photo all the time was torturous.
The only thing I could think about was cumming
