Leonard knew that if he was going to do something to Sarah, he'd have to do something to her boyfriend, Biff, as well or he would beat the snot out of Leonard. After some thought, Leonard came up with the perfect solution: a way to embarrass Sarah (and Biff) and get something out of it himself and something nice for his little sister Leslie. Leslie was only 13 but already in high school; she was following Leonard down the path of nerdity. Leslie was almost painfully shy, and terrified of boys.
"I wish that Sarah would act in every way like my ideal girlfriend towards me; making out whenever I want, having sex whenever I want, being totally submissive and cheerfully serving me any way that I want or that she can think of that I might want. I wish that Sarah will be aware of the change in her behavior but will be unable to change it or say anything about it. The only time she will be able to control what she is saying is when I say the word 'mythology', and the only time she will be able to control her actions will be when I say the word 'boondoggle'. Whenever I have said either of these words, the word 'normality' will restore Sarah to her good girlfriend mode. Similarly, I wish that Biff would act like the perfect boyfriend towards Leslie; I wish that Biff would be the perfect gentleman all the time towards her, and that Biff would do anything that Leslie or I tell him to, with my commands taking precedence over hers. I wish that both Leslie and Biff will realize that he has to do what she says, and that neither Leslie nor Biff will question why he is acting like he is or how Leslie got control over him. I also wish that neither will notice that Biff also follows my commands. There, that should cover it!"
The stone flashed, and Leonard decided to go find Sarah.
