Me and my family always used to sleep in the hall so I got a chance to sleep near to my sister with some courage while she was asleep I touch her boob...s with fear if she don’t responds to my touch I squeeze it very hardly with one hand I will grab her Boob with other hand I grab her hand then using her hand I make her hand to grab my tool and masturbate. For some days it went like this soon I realized that she s knows what I m doing to her so I decided to tease her like whenever we have a chat. Mistress would start off by restraining me face down so she could pull my thong to the side & start teasing my pussy hole first with her fingers to loosen me up a bit before she would start insert an inflatable vibrating butt plug which the more I pleased her the more she would inflate it & turn up the vibration, this would go on for a while making sure I was losing control with pleasure slapping my arse with a riding crop and calling me the slut that I am then she would untie me then commanded. When ever I have exams she never allowed me even to kiss her till I finish the exams. But she used to tease me when I am having my exams. When I was studying for exams on the bed she use to come an sleep next to me and removed her loosed end of the sari and use to say it was very hot today. Seeing her sexy breasts and navel made me mad and if I go a head to kiss her she pushes me back and covers herself with the loose end of the sari and use to say sorry if I have disturbed you. After I finish. My sister soaked up the attention like a sponge. But as the afternoon progressed, it was clear who she was going home with, and it wasn't Bill Hudson.It was on the elevator that Tandra sprung her understanding on me, right out of the clear blue, and I was instantly in shock as her perceptiveness."He knows, doesn't he?" she asked. "Bill, I mean. He knows about you and me." Yeah, he's figured it out, Sis. But I trust Bill. He told me he'd keep our secret, and when he says he'll keep it quiet, you.