Mayuki and I joined the company at the same time. She is rapidly advancing while I seem to be stuck in place. But fortunately, although my career isn’t great, I was able to marry my wife. Recently, work has been overwhelming; last night I couldn’t go home and had to work overnight at the office, and of course, I haven’t showered yet. Today, I’m trying my best to finish before the last train to go home to my wife. Since this is Mayuki's project, she also came to help me complete it. But she finished while I was still struggling, and by the time I completed my work, it was already too late for the last train. It looks like I won’t be showering again today. You haven’t even showered? You smell so bad; my house is nearby. Come shower at my place. Since I smelled so bad, I reluctantly went to shower at Mayuki's house. On the way, we chatted happily together; since we joined the company at the same time, we have become quite close. When we arrived at her house, Mayuki changed into a rather comfortable outfit. The shorts exposed the big buttocks, and the top of the massive breasts kept provoking in front of me. My little boy quickly swelled. Just today I don't seem to believe my ears. She agreed to let me have sex to my heart's content tonight! And we immediately rushed into each other, constantly having sex all night until the next morning, still working one more round before going to work. Although I wanted to, I didn't dare to ask for it. But when I saw her give me more documents to work overtime, I knew that our relationship would still be able to continue.