I'm your big sister and I've noticed you have a huge obsession with my asshole. Little do you know, I'm obsessed with yours too. While our parents are gone, you make a move once and for all. I teach you step by step how to play with your ass and milk your prostate. Don't worry, your big sister knows exactly what to do. I spread and wink my asshole for you to get you hard and even a little bit of a blowjob. Follow my directions and by the end you'll be cumming so hard. You'll love your big sis even more than before.