As I'd written in an earlier post, the situation was pretty fluid for us as we adapted to male chastity. She liked the benefits, and seemed happy to take the keys, and the control on this situation. We discussed at great length about it, how it works, etc. Relieved and convinced it doesn't hurt (which it doesn't really, except around 5am for the early morning erections

) she seemed a lot more relaxed about it.
I even had her fondle my parts yesterday after an intense kissing session. The passing comment after was "Nice to know you're kissing me without any ulterior motives"
So last night we talked more about it. I have a big birthday coming up (one of those round number ones) and talked about being released for it. It was simply up to her, I stated. She has the keys, and it's at her discretion whether I am let out. She said she'll think about it.
We also started making it a game. It's probably a variation on the dice games. She had 2D6 and rolled for a starting number of days. She will roll and add days if I am not pleasing her. She will also roll and subtract days if I really please her. There is one crucial element to all this.
I don't know the number of days, nor do I know if she rolls for adding/subtracting.

She will only hand me the keys when I reach 0 again - whenever that will be!
More rules - aside from cleaning and emergency releases, I am in no way allowed to ask for release, or to imply I need to be satisfied (as intercourse is painful, we either take it really gently or she gives me handjobs). As she said that one, I could just tell she was loving it. I can be rather expressive with my sad, shocked and horrified faces

The final rule was that if either of us argue, it is an automatic week extra in the cage, non-negotiable. We found that on a site explaining MC from a female perspective. I can get a little tetchy, but have to apologise. If either of us raises our voices at each other, the week goes on.
Couple of other amusing points which make me think she's really enjoying this:
The keys are marked 'WD' - she now calls it "Willy Detention"

.
If I am let out for my birthday, she said:
"It will be an evening pass only. You will take it off, clean up, come and do as I say, then when we have finished, it will be going straight back on."
Damn, Mrs sexy_cheese can be quite demanding and mischievous too.
"She waved the keys in front of me and with a sly grin said 'You'll never see these again unless I let you out'" - my wife.