My stepsister starts playing with my cock

I already thought that everything was too perfect. Upon learning that my father had married another woman, I screamed with excitement knowing that now the attention would not be focused on me. I could do whatever I wanted and no one was going to pay attention to me. That was too good to be true, since upon meeting my stepsister, the first thing the little slut does is start playing with my cock. She thinks it’s very big, however I don’t understand how she insists on putting it in her mouth and then riding it. I had to fuck and I even wanted to cum inside her pussy.