I was walking through the hallway when I saw my stepmom playing with her big pussy lips. At first, I thought it was nothing, but then I realized that she was actually masturbating. I couldn't believe it! I had always thought of her as a nice, pretty lady, but now I knew she was a dirty whore. I decided to confront her about it and to teach her a lesson. I asked her to give me a blowjob, and she did. It was not bad, but I knew I could do better. I took out my dick and started fucking her mouth. She was surprised at first, but then she started to enjoy it. It was a hot and steamy experience, and I knew I had to do it again.