"My request is that you get a boob job."
"What?" gasped Sarah. As her breasts were already above average, so a boob job would give her truly titanic tits.
"That's right," said Jon. "I want you to get the biggest boobs that you can. Ones so large that you can barely walk around anymore because they are so heavy."
"God damn it, Jon," exclaimed Sarah. "All right, I'll do it."
She gathered her clothes and left without bothering to put them back on. Jon playfully slapped her naked ass as she left. Jon wondered if she would actually go through with it, or if her inability to refuse only extended to when she was physically with him.