Wife secretly having sex with her husband's subordinates

He has been married to his wife Nao for several years. He has now been promoted to sales manager and has built a good relationship with Nao. One day, the topic of marriage with Suzuki, a subordinate of the company, was too negative, so I decided to experience a fake couple with Nao to feel the goodness of marriage. That day, Suzuki had three hours alone with Nao. Suzuki seemed to like it too, and a few days later, he asked me to be a fake couple again. At that time, I readily agreed without any doubt.