I just kept looking at her, trying to devour her beauty through my eyes. Suddenly she looked at me and said “hi”. I was caught on the wrong foot a...d I somehow mumbled back “hi” to her. The way it came out of my mouth was plain gibberish and she couldn’t help but laugh out loud. Even I had a sheepish grin on my face and then I gathered the courage to introduce myself to her. She in-turn introduced herself and I got to know that her name was deblina. Soon we started chatting and I got to know. “I am going to take a hit, and when I do, you bring your face close to mine and open your mouth.”It sounded funny and I let out a short laugh but I agreed. “All right.”He sucked on the joint and tilted toward me. I scooted a little closer and leaned my face in. He blew the smoke out in a hard stream into my mouth. Reflexively, I inhaled it until I felt like my lungs might burst.“Hold it in, hold it in,” he coached.I did, closing my eyes to concentrate on the task, my body feeling light, as if I. The other side of the wall I heard my sister scream for out brother to cum deep in her and fill her up. Daddy loved hearing that as he shoved his cock deeper into me. After a while my sisters screams calmed down so I guessed they had cummed and I wasn't far behind and nor was daddy. His big fat cock was soon swelling once again in my cunt and he held my hand has I rode him squeezing him with my pussy trying to get his baby seed out of him and into me. It didn't take daddy long and he soon. One evening we had watched a TV programme which featured two bi guys and so the subject came up again. She asked me if I ever fancied doing it again. I told her that if she wanted to watch me do it I'd be happy to oblige. She then surprised me by telling me that she'd been chatting to a girl at work who's husband had had a similar experience and that it turned her on as well. They had been hatching a plan to get us together so that they could watch us.That weekend we went over to their house.