My stepsister assisted me in reaching climax after witnessing me masturbating

The other day, I was sitting on the couch, trying to stimulate myself to reach the peak. Suddenly, my stepsister came in and saw me playing with my cock. She was really surprised by my big cock and wanted to give it a try. So, after a little hesitation, she kneeled in front of me and started sucking my cock. At first, she was a bit hesitant because she had never done it before, but after a while, she got used to it and started to enjoy it. After that, she took off her panties and spread her legs, so I could fuck her. First, she was sitting on the couch, and then she rode on my cock while I was lying on the bed. Then, I bent her over and fucked her from behind. At the end, she gave me a blowjob again and I came all over her face.