50/50
Now I should warn you there is a 50% chance you will be going home dressed as your sissy self, I can't force you to keep playing but remember our deal if you don't play I get to keep you caged for the rest of the year. Strip, I want you sat on the toilet naked. Semi-public can be hard can't it, here perhaps my tits will motivate you and provide a timely reminder to your clit how badly it wants to grow.
Now empty the bag, I bet the thought of slipping into your knickers is exciting you isn't it, well I may allow you to wear them but I doubt you'll be too keen on doing so once the consequences of the game kick in and your brain after the initial excitement realised there's a world beyond your cubical and very one at that.
Once your naked I want you to put all your main clothes in the rucksack, every single thing you'll stay locked up for 6 months. Don't worry this isn't a trick the game is completely fair I'm not trying to trick you. Leave anything you need such as your car keys an wallet outside the bag.