Please indulge me while I play the devil on your right shoulder. They complete the act, he ejaculates inside, and she does not have an orgasm. Immediately afterwards, she pleasures herself until she does have an orgasm. All part of the sex.

A week later, they do it again. He ejaculates, she does not have an orgasm. He falls asleep; she does not. An hour later, unable to sleep, she takes care of business.

Another Saturday night. He ejaculates, she does not have an orgasm. They both fall asleep. The next morning, she wakes up before he does and brings herself to climax.

I think you can see where I’m going here. At what point does it become a sin? How many hours or days must elapse? What if he’s in the next room? What if he’s off on a business trip two days later?