Neither do I because I can't get enough! Love your profile, we share similar tastes for sissy pleasures add me if you're interested because you're invites are full!
You don't have to know when to stop, you don't have to care about it, you don't even have to think about it. That is for Daddy to decide, and He will tell you when to stop. All you have to know is that you must do as Daddy says and keep doing it until He tells you otherwise. Understood, sissy?