I have to say I adore this one, and I hope you can manage to stretch this out to make that 'All Day' setting a reality. I love bondage, especially tied to an object, and the writing in what you've made available to date is just plain sexy. I really can't put into words how much I would've liked to continue from where the session ends at present.
If you're depraved of ideas and/or are taking requests for extending the tease to that day length, consider multiple orgasms, maybe ruined, maybe denial. Also, I for one don't mind a little pain. And clothespins.
It's rare for me to bother to make an account for an all new forum just to leave a single reply, but I really can't stop thinking about where this could go. I hope you get it done!