When I was feeling down after being dumped by a girl, my stepsister asked me, "What do you want to do?" and said, "I'll be your girlfriend until you get a girlfriend?" I got carried away and my requests escalated more and more!! I got a boner without thinking and asked her, "Since we're lovers, I want to do it," but she said, "We're brother and sister, so it's no good, so I'll just rub it and be patient," and she straddled me and did a handjob!! She got wet, so I just inserted it raw!!