Growing up my sister and I did what a sister and little brother do, like wedgies and pantsing but we grew out of it at about 12 and 13. Even with threats of it during our teens of similar reactions to things we did it never happened.

Until one day when I was 15 and my big sister caught me smoking a cigarette. I begged her not to tell our parents she agreed and said she would punish me instead, as the thought of our parents reaction was in my head I agreed.

A couple of hours later she came into my bedroom and locked the door behind her. She told me to drop my pants so she could spank me. I protested a little but we made the agreement that I could keep my boxers on. After swatting my ass for what seemed like a life time she let me stand up. She told me to turn around so that my ass was facing her and lower the back of my boxers so she could see how red it was, I did that and was told to put my hands on my head.

I had stood there for a couple of minutes when she pulled my boxers all the way down. I was annoyed, feeling that she had taken the punishment to far so turned around and lunged at her pushing her onto her back on my bed. We faught, scrapped and faught some more. In the fight my pants and boxers had fallen past my ankles and off. Her skirt had lifted off and he top was rising up.

I managed to pin her down and noticed her grinning as she looked at my dick. This made me worse I tore her top off, pulled off her skirt, bra and panties and we started fighting again.

We fell off the bed and onto the floor she got up collected her clothes and in anger said she would get me back big time.

That was the start of 2 months worth of public humiliation for us at each others hands until our mother stepped in to stop it by making us stand naked in our living room in front of our friends and cousins.