I returned to the bed and wanted to see if he noticed that I was now naked. He did! I then said I simply had to take my underwear off in the bathroom...."Do you mind?" "Er no, but I have never seen a woman naked there before" he blushed. "I take it you approve" I smiled glancing at his erection. "Oh yes but I am afraid I can't control myself" I masturbate, do you?" I teased. "Er yes sometimes I do although not often" he stammered with evident embarassment."Well I think you probably need to. In general, I don't like watching porn because of the reasons I mentioned." But this was relationship porn," he remarked. "Are you telling me that women will respond to sexually explicit, relationship-oriented material?"She smiled again. "Well," she said sweetly, "This woman does." Is that why you wanted to see it?" No. I read about it and I was intrigued. When you said it was showing ... I figured, why not?" She opened a drawer. "I have something to show you." She removed the bottle of Bacardi. He loved sucking the full tits and big nipples. He would bite on them till they were tender. He then spread her legs and felt her pussy. He played with it for a long time running his finger between the slit and pinching the puffy big clit.He pussy tastes so good and he sucked her cum from the hole many nights. He then turned and layed on her so they could suck each other at the same time. She had been taught to take the whole cock in her mouth and suck it till he would cum and she would swallow. My parents had gone out and left a note saying they would be back later, picking up my phone I phoned Kelly “hello how may I help you” I burst out laughing “were the hell did that come from you daft bitch”. I cleared my throat and said I was calling about the voucher and wanted to cash it in, Kelly said she would be home shortly.I felt nervous as getting naked in front of my step sister, was nerve wracking enough but her going down on me was even worse, I just hope I didn’t do a false start..