’ My math wasn’t anywhere near that quick, so I sipped my coffee while the wheels in my head turned. It was then I choked into my cup, causing cof...ee to dribble down my chin. The bitch had stepped out on me over two hundred and forty times! Security looked at me, concerned. ‘You could have warned me it was that hot.’ He laughed and placed his coffee down on the table, then started testing the equipment before he would sign for the work done. I decided I needed to know just a little more, it was. As she started to climb the stairs with me a couple of steps behind her I realized she wasn’t rushing and I helped myself to an elongated view up the back of her skirt and her smooth toned thighs, OMG what an arousing sight as her regulation white cotton panties wedged up the crack of her rounded arse.Milly pointed to the bathroom and disappeared into her room leaving the door open and as I stood by the bowl I could glance in and see her in the reflexion of the mirror as she started to undo the. "Let's clean your teeth and then come with me to your bedroom."Wearing only a tee-shirt, Cathy was placed on a towel on the bed and Hank proceeded to rub cream into her nappy area, then sprinkled her liberally with baby powder before putting a Pampers size 6 years on her. He then tucked her in. "Sleep tight Pumpkin," he said. "This time you will wake up dry."Falling asleep was not easy though – the forgotten sensation of being in nappies took some time to get used to. There was an additional. So you better do as I say. SHOW.ME.NOW I was stunned that my sister was asking such a thing but I really had no choice. So I took my right hand and started stroking my soft penis. She was standing by my feet so she had a full view of me and I had a full view of her in her white skirt and tight blouse. It didnt take long before my cock was fully erect and I started stroking it trying not to look at my sister. I tried to forget she was in the room but no matter how hard I tried I knew she was.