When I was younger my mom put me on the pill, saying how it was better - just in case. Well, I really wasn't being sexual and didn't want to get that reputtion. But my brother, a year older than me, I had always been close and we really had a good ime together. So it was easy for the two of us to start having sex. It was so exciting doing that together, and of course we both knew that we had to be extremely careul, because if mom and dad ever found they would hit the roof and probably dosown us!
Well one afternoon my brother and I were naked in the bathroom and I was agianst the counter and he was sticking it in me and we were fucking. I couldn'tb believe it when our little sister opened the door and saw us. We told her to leave and she did and we quickly got dressed. A little later our sister asked me what we had been doing. I told her that we were just being close was all, and I made her swear not to tell mom and dad.
After that my brother and I lived in fear that our little sister would say something, but apparently she never did and our secret reamined a secret.