u/BrilliantWeak9061 — tumbrall

When I was about 10 years old, I used to sleep in my parents’ bed, always next to my mom. For almost two years, I would hear them having sex almost every night. Sometimes I would open my eyes and see my mom’s big tits right in front of me. One time she even noticed I was awake and looking, but she didn’t care at all and just kept going.
We also used to shower together as a family, and the same thing would happen — they would have sex without worrying that I was there.
When I turned 12, my dad died. Even after that, I continued sleeping in the same bed as my mom. I would always hug her from behind in spooning position and try to hide my erections.
This went on until I was 15. One extremely hot night, the air conditioner broke. My mom decided to sleep only in her bra and a thong. She asked me if it was okay, and I said it wasn’t a problem. We lay down as usual, with me cuddling her from behind.
In the middle of the night, I couldn’t hide my erection anymore. It was rock hard and pressed visibly against her ass. Instead of moving away, she started pushing back against me, getting closer and closer. Then she quietly took off her thong and whispered:
“Do it.”
I asked her if she was really sure. She told me she felt very lonely and that it had been three years since she last had sex. She said she wanted it.
That night we had sex. It was long and intense. I came four times. Her tits were big, white, and surprisingly firm — they looked like she had gotten implants. They felt amazing.
Afterwards, we took a shower together. While we were washing up, she told me calmly that we would never do it again. Then she asked me to go sleep in my own room.
Since that night, our relationship went back to being completely normal, like nothing ever happened. For almost a whole year I kept asking her to do it again, but she always refused. Eventually I stopped asking. Today we have a good, normal mother-son relationship.