Things would never be the same again with her.
That's what I thought that night sitting on our sofa, my sister next to me, exhausted, satisfied, naked.
They weren't.
A couple of days later I caught her online, in a chat client. She was at work, typing away at something, and I was at home, enjoying my free time. I asked her what she was doing, and how she felt, now that she had a day to review what had happened between us. It turned out that, like me, she did not regret one bit of what we had done. I loved her for that.
We chatted on for about two hours, speaking about this and that. Mostly we talked about that night, when she, my wife and I had made out and each cum once. We had not actually fucked. Not because we did not plan on doing that, but because we wanted something to look forward to for the future.
We exchanged fantasies then and there. She told me how she would love to be taken publicly, but in secret. I told her how I wanted to press her against a wall and firmly and quickly take her from behind. She told me she loved my body and my cock, and I told her how I had enjoyed tasting her for the first time. As you can probably imagine, we were both pretty hot after some time. She complained to me, playfully, about how she was sitting at work, and getting horny. I replied by asking her what she was wearing under her clothes. I didn't really expect her to answer me. She was a teaser, had been for some time. She always would tease you, get you all hot, and then leave you with a big hard cock and only your own fantasies.
She still manages to surprise me from time to time. Added by a smiley with a shy and innocent expression she said she was wearing a black thong and a matching bra!
Black. Her color of choice these days.
I didn't complain. I loved black underwear. Especially when it was clinging itself to a young and beautiful body like my sisters. I wanted her so much that very moment, but you probably can imagine that...
We talked some more, me telling her how I would love to be under her desk now, touching her pussy through the thin fabric of her thong. She complained, wanting my tongue to dance between her legs instead. I said I'd love to comply. We shared more fantasies, getting hotter still. After some time, she was her old self again. Having just told me how I should imagine her lying in front of me in just her panties, her hands starting to go between her legs, she finished work and was gone in less than two minutes.
My baby sister, the big tease...
Later that day she send me a SMS telling me how she had just taken a shower and fingered herself thinking of my beautiful, big cock, and how she had cum with her knees shaking and giving away.
Yes, my sister, the tease...
We agreed to go to the movies together two days later, just her and me. My wife Franzi we left at home. She said goodbye to me with a big, knowing smile on her face. How in hell did I get so lucky?
I met Jasmin, my sister, at the cinema about an hour before the film started. It was a screening at about 10 pm, and the film had been around a couple of weeks, so there were only about 20 people in there watching the film with us. I had bought the tickets in advance, selecting the last row of seats on purpose. I made a big show of searching for our row and seat number, and when finding it gave her a big smile. I can be a tease too, if only fairly so.
The room was one of the smaller ones in that cinema. We still had a decent view from where we were sitting. Out of the corner of my eye, I watched her intensely, wanting to get a feel for her mood, and then judging my course of action. She was unreadable at that time. Did I mention she always won our games of poker?