My Midnight Passion with My Sister-in-Law

page views:1 Publication date:2023-03-23

My wife and I are both born in the 80s. My wife has a younger brother who is four years younger than us. My brother's wife is quite beautiful and has a good figure. Because we see each other often, I've unintentionally seen her private parts several times and occasionally fantasize about it, sometimes even saying it aloud during sex with my wife to increase the excitement.

That summer, my brother's wife and mother-in-law came to visit us and stayed overnight. My mother-in-law and sister-in-law slept in one room, and my wife and I slept in another.

That night, because of my brother's wife's visit, I was unusually excited and almost forced myself on my wife. Of course, my wife also enjoyed it, but she didn't dare to make a sound. However, I deliberately increased the intensity of my thrusting, so they probably could hear it.

Afterwards, still feeling unsatisfied, I went to the living room to smoke. Since it was late at night, I didn't turn on the lights so as not to disturb their rest.

Usually, it's just my wife and me at home, so we're often naked. I lay naked on the sofa smoking, and after a while, I got a little sleepy.

Just then, the door opened, and a person came out. In the moonlight, I could tell it was my sister-in-law; she had a really nice figure, with large, firm breasts that jiggled as she walked.

She probably assumed no one was outside, so she wasn't dressed. I, on the other hand, heard the door open and was about to turn on the light, forgetting I wasn't dressed. My sister-in-law, still rubbing her sleepy eyes, looked a little dazed when the light came on.

I was even more stunned when I saw her, but for a moment I smiled and looked her up and down, especially her breasts and private parts. She turned around, clutching her breasts, and continued towards the toilet. I followed. She heard me follow but didn't seem to care much.

I watched her sit on the toilet, legs spread, to urinate.

She looked at me with a slightly embarrassed expression and tried to close her legs, but I pried them open, and my penis instantly became erect.

After she finished urinating, I turned her around, made her hold onto the toilet, and thrust my erect penis into her vagina... I thrust in and out dozens of times, and my sister-in-law's vagina gradually became wet. She moaned softly, trying to keep her voice down. My hands climbed onto her large, firm breasts, kneading them vigorously, enjoying the pleasure from her full breasts—a sensation I had never experienced with my wife. Perhaps because I used too much force, my sister-in-law gradually came to her senses. She suddenly realized what was happening and stopped me, turning and pushing me away as she went back inside.

I didn't dare to be too forceful, afraid of waking the other two, so I went back and thrust into my sleeping wife.

My wife was groggily awakened by my actions. My mind was filled with the scene from earlier, and I continued thrusting into my sister-in-law, ejaculating inside her.

The next day, everyone woke up as if nothing had happened. Later, my wife asked me why I had sex with her twice a day, since it was usually only once, except during the early days of our marriage.

I laughed and said, "It's because your sister-in-law came, I was so excited, I've always wanted to sleep with her." She joked, "Sure! I'll ask her sometime." They both laughed it off, but my wife didn't know that I really did sleep with her sister-in-law!

[The End]

(Word count: 2107)

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