My heart pounded in my ears. I was afraid she might see me, but I was so horny that I just reached down and started stroking my cock, watching her rub...her pussy and her breasts. I had heard that women masturbated but the sight of seeing my grandma with her big sexy body vigorously rubbing her snatch just drove me wild. I wanted to fuck her so bad!It startled me as I found myself whispering out "Grandma!" I froze and gulped hard realizing what I had done. She heard me, the motion of her hands. Out of curiosity I wanted to check her size. I read the label of the panties which read, 'UK-size14'. " So that meaty ass fills a size 14?" I thought to myself, picturing the panties caressing her big butt cheeks. Without further ado I got my cock out.I held the panties to my face and began pumping my cock. I was fantasizing about all kinds of things I would do to Liz. The feel of her tongue on my asshole, gliding my cock along the crack of her ass, feeling them big teeth scrape my cock,. The door opened and Sara stepped inside, tuning to see her hostess. Bev was indeed Asian; black hair, oriental features and all. She stood about five three. She wore sheer, multicolored tights that showed every hair on her lower body, especially the sparse hair on her mons. On top, she wore a cut-off top of the same material. It ended several inches above her waist. Her skin was creamy and flawless. Sara's reaction must have been visible."I'm Bev, ' she said. "Sixth-generation American, but not. Cut to Rocky-style montage of Sammi and Georgia, training. God she was hard on me, pardon the pun. I had a crash-course in girls' clothes, from underwear to skirts, then make-up, then high heels. I learned how to use depilatory creams to keep myself hair free. We did a little bit of training with dildos but Sammi thought it would be better if I was as much a virgin to being penetrated as possible, because Daddy would find it even more exciting to 'break me in' as she put it. I learned to suck.