What makes it even worse is that mom and dad are not stepsiblings as we first thought, but brother and sister. So our mom was also our aunt, and our f...ther was our uncle. Oh Shit!“Now you know why we were upset when you two wanted to get married,” my grandmother/great-aunt spoke for the first time. “Why didn’t you tell us about this before?” Mom asked.“We were hoping that we would never have to talk about this,” my grandmother told her. “But, it is all out in the open now. No one else knows. Did I dare? I take a small step inside, but shake my head and step back and head towards my room. I step inside and pull off my clothes, getting ready to take a shower. Just then, I hear my door close. As I turn around I see none other then Mason, shirtless, as if he had been waiting for me. As my eyes meet his, I know that in fact, this was the night he had planned. He walks up to me, “Look at you my little slut, all ready for your lesson.” He grabs my wrists and backs me up to sit down onto. “Night mate” said Mike before darting upstairs to his room.Before retiring to the spare room I needed to use the bathroom to relieve a bladder full of beer and coffee, after sipping the rest of my sobering coffee for a few minutes I headed upstairs to the bathroom.I opened the bathroom door and there she was. Mikes mum was sat on the toilet with her leggings along with a sexy pair of pink satin knickers around her ankles (or Panties as they say in the US – In fact, from here on in I will refer. Cheyenne propped her head on her hand andused the other to caress Gabrielle, paying wonderful attention to her breasts.Gabrielle felt Cheyenne hook her left leg over her bound thighs and slowlypush her groin against her leather. Cheyenne ran her fingers gently down theside of Gabrielle's face; Gabrielle's eyes closed in the delight of it all. ?I have never seen you look so beautiful,? Cheyenne said softly into her ear.Gabrielle was slipping into her own world of the leather's tight embrace.