"My disgusting, self-absorbed, and dominant stepsister and I hated each other. However, we were often alone, so we had to communicate. One morning we were drinking coffee and talking about corporal punishment, and we agreed that she would be dominant. I asked her, “Will you spank me twenty-five times on my bare bottom?†When my parents went to work in the city, she came to my room and spanked my bottom and thighs for half an hour. I told her not to spank my thighs because I wouldn’t be able to wear skirts, and then she savagely spanked my calves, below my knees, which hurt a lot. Then we each masturbated hard, hard, hard, each in our own room. When my parents came back, the two of us girls were at the same table having lunch. We smiled at each other. It was a secret agreement that we would continue hanging out and experimenting tomorrow."