My friend's stepsis Violet is an anal virgin

After a long day at work, I'm waiting for my girlfriend at her house. There is no one at home except her stepsister and me. As soon as I dozed off, she appeared out of nowhere. It was too late to resist and I decided to satisfy her curiosity. But don’t think that she’s in the leading role, I also got what I’ve wanted for a long time - her anal virginity. This will be our little secret!