Suddenly you feel that one harem girl is not enough for you.
"You know Amanda, I wish that you would become my harem girl" you say.
"What?" she asks. She was too busy playing with the kitten no notice what you said. Then she starts holding her head as if she has one of her usual headaches.
"Are you alright babe?" you ask.
"Yes master" Amanda says.
"You don't have to call me 'master', just call me 'Joe'." you say.
"Yes Joe" Amanda says.
It occurs to you that harem girls live with their masters, so you make a series of wishes. First you wish that your house has a basement. Next that there is a fully furnished double bedroom in there. Another wish is that all the girl's belongings are moved in the basement. Also that their friends, relatives and your friends and relatives know that the girls are staying here and are OK with it. That only you and your girls can enter the basement. And finally that no one will want to ask them to go out with them or anything of that sort unless you want it.