"You Must Call Me Princess Or Else"

One day Jake was playing with his older sister and she made quite a few demands about how their time would be spent.  After almost an hour of meeting all her demands and even calling her "Princess", finally Jake said "I don't want to play anymore."
Jake's sister stood up, calmly shut the door shut and with a stearn voice said "You must call me princess or we are not playing together anymore!" 
Needless to say, I had to go open the door and rescue Jake!  After that day, he was always sure to ask "I don't have to call you princess... right?" before each and every time they played. :)

 http://www.zazzle.com/call_me_princess_or_else_speckcase-176817775225779388?gl=SnakesMom&rf=238413649595441313