Elephant in the Room (The Cuckold)

Theirs was a happy and average marriage with only a few of the normal problems and conflicts. Yet they never seemed to have a fully satisfying sexual relationship. Barbara always thought their lack of intimacy was because of her strict puritanical upbringing. It was true that William was not well endowed with a smaller than average penis. She had at times wondered what it would be like if he was larger and also more assertive in their love making as she wanted to be with a strong and controlling man in bed and in her life.
Finally William admitted what he desired; it was the opposite from that of his wife. He wanted to see her being satisfied by a man while he desired to be even less assertive and wanted her to take control and be more of a dominatrix. So, on her birthday, William gave his wife the present of another man and himself as her cuckold. How would she react? Would she accept or leave her husband?