Pick a number of spanks.
You will be strapped to your vibrator for the time it takes to deliver the spanks. Once the spanks are completed, the vibrator will be off and that will be the end of your permission to cum for the foreseeable future.
If you manage to cum before you run out of spanks, the spanking will continue through and after your orgasm until the full number you picked is doled out.
How many will you ask for? 20? 50? 100?
