Since we started having threesomes when we were just dating, we decided that she couldn't fuck with my friends, but after 10 years of marriage, something very unexpected happened, my best friend was unfaithful to his wife and she threw him out of their house, we offered him to stay at our house for a few days until he rented a house or his wife forgave him. He suspected that my wife and I were doing some things out of the "normal" for some time and he was sure when an acquaintance of his claimed that he fucked my wife occasionally, he always asked, but I avoided the subject and denied anything, however, he was always very respectful towards my wife and never tried anything with her. However, my wife and I had been thinking about having another baby for some time and the idea of the pregnancy being with another bull came back to our hottest thoughts, so we decided that this would be a great opportunity, after much talk and fantasies, she decided to seduce him , but it would be secret, he couldn't know that I knew about it, we would "fool" him.
In order not to get so tedious, I'll summarize the story: he spent almost four months fucking her almost every week. Occasionally he still fucks my wife when she's really horny