My parents married at a young age when they had my sister. A few years later they had me. We aren't the closest of family members but we keep in conta...t mainly for the sake of saying we're a good family. My sister and I never got along. She always had the hottest friends and I watched them from upstairs as they had slumber parties and compared each other. And I had never had a thing for my sister but more for the girls she brought over. On occasion I would walk down nonchalantly and pretend. Always been there for me. We don’t talk quite as much, both been busy. But we talk on the phone as much as we can. Generally every Monday. This Monday was no different, she phoned me at 5:30pm. That’s the time I get in from work, I was expecting another of our epic phone conversations. Instead what I got was instructions, meet her at her work. She had something important to tell me, something she’s been meaning to tell me for along time. Something that cant be told over the phone. I told her id. She pants a ?Please Master? into the skin of my foot and her second orgasm is released. As she cums I lift and turn her head and bring it to rest on my right foot and I sit back and sip my glass of wine as she salivates and cums her obedience.She is flushed, panting, her breasts heaving gently, her hair dishevelled, her lips parted, her eyes shut. She is a vision of pleasure, cuming endlessly at my feet but I do not wish her to lose herself completely, and after a couple of minutes I gently. She had a threatening look and showed me to a wooden chair, she said "sit down !", I said "why ?", she answers "don't ask, sit down !". I was a little bit scared but I did what she told me to. Now she is sitting on me, looking at me deep in the eyes and start to slowly take off my underwear. I can feel her pussy leaking on my lap. She takes off my underwear, leaving me naked on the chair and gets up for a second. I say "what are you doing ?", she doesn't answer... I start to be scared as I feel.