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I was invited to the home of a senior who has been kind to me. He seems to be living a happy married life with his wife. He told me to drink as much as I wanted, so I decided to stay the night at his house. Late at night, I was thirsty and went to get a drink, but I witnessed my senior training his wife to be a masochist. When I woke up the next morning, my senior had gone out, and the wife, who was left alone with me, tried to seduce me in a strangely close way, but it was all a plan by the perverted couple...