Horny sis wants my dick

When my stepsister caught me masturbating while spying on her as she was doing the same I was so freaked out I was ready to do anything to have her not tell mom and dad about it. Imagine my shock when she said she was horny and wanted to fuck me. Wow! I mean she`s just my stepsis, right? She`s hot and she sucks dick better than a vacuum machine. This slut rode me like a cowgirl and made me cum right in her mouth. Man I love our kinky family!