I know you’re dying to hear about how I imagine a threesome between you and my step-sister would go. Well, listen up, and hear about my lifelong crush I’ve had on my step-sister, and how it all just became more hot and heavy after you started dating her! It’d be a lot of fun, three girls under a big blanket in the living room! I might be a little greedy about your cock though, since she can have it whenever she wants.