Tonight's the night we make your sister a part of this. It's time that she finds out just how special her family is and how we take care of each other. It's very important, isn't it, Son? It's certainly not wrong, is it? It's not wrong taking my son's cock in my mouth... I want you to go into her bedroom, spread her legs, and then I want you to spread her pussy open. Then I want you to sink your tongue into her pussy, tasting her juices. I bet they taste so good. I want you to bury your face in her pussy, even if she squirms. Just keep going. I want you to make your sister cum on your face, tasting her cum from her wet pussy as she squirms on your face. After you make your sister cum, I want you to shove your big fat cock inside of her tight little pussy. I want you to stretch your sister as she cries out. Once this fat cock is deep in her pussy, I'm going to walk in. And you're going to keep fucking her. Don't give her time to think about it. Just keep fucking her. Maker her feel so good that she has no choice but to enjoy her brother's cock stretching her tight little pussy while her mom watches. I want to see my son fucking his sister. I want to see you empty a huge load of cum in my daughter's tight little pussy. You're going to have a big cum load for your sister, aren't you Son? I can't wait to see it dripping out of her pussy.