You know what? I think even though that's not the main point of this tease, i'll let you have one single edge before we begin. Just to get you in the right mood.
What's that? Oh, right. The chastity cage.
Well, too bad. The cage stays on. For at least the duration of this tease.
Maybe we will decide on your actual duration later...
So if you are still unlocked, enjoy your freedom and the feeling of being a real man, play with your dick, make yourself feel good, imagine fucking me hard and long, do whatever you need to get yourself really close to the edge, then stop and let it all fade away.
Don't worry if you are locked in chastity. You still get some pleasure. Look at me and play with your balls until you are straining in your cage. Imagine how it would feel if I was there to tease you personally. Me fondling your balls, licking your cage...
I don't want you just getting a bit stiff in there, filling out the cage. I want your dick pressing against the bars, bulging and trying to squeeze out there. Don't stop teasing yourself until you are sure it can't get any harder in there.