My Best Friend's Futa Surprise

Previously published as My Best Friend's Futa Surprise: An Erotic First Time Short Story by Phoenix RoseFooling around with my best friend, she lets it slip she's not been completely honest about being entirely female. There's one part of her which definitely isn't...Curiosity gets the better of me. I have to know. I have to see it. But she has conditions. The first of which is that I'll be her sl...