Sleep with my daughters

"I'll be glad to have sex with you again, John, but on one condition. First, you must sleep with my daughters," Laura told me.

I looked at her as though she had lost her mind. "What? They're married!" I protested.

She gave me this no nonsense look. "I know you have a crush on Rebecca and you have always wanted to have sex with her. No, don't deny it," she added when I opened my mouth to protest further.

"Why do you want me to sleep with them?" I asked.

"To give me grandchildren. I don't think either Chris or Jeremy are able to give them children," she explained.

"And what if the problem is not with them but Danielle and Rebecca?" I pointed out.

Laura shook her head. "Trust me. The problem is not with them. Don't ask me how I know. I just know."

"So let me get this straight. In order for you to have sex with me again, I have to knock up your daughters?"

"Crudely, but succinctly put. What is your answer?"