.."Then silence.I strained to hear more, hardly daring to breathe, but there was nothing more. Not that night, and not the other nights I hoped to hea... her in the act again. But the memory of that one moan stays with me. "Oh fuck, I'm cumming..." Before then if you'd asked me, and I felt like being honest, I would've grudgingly admitted tbat my sister was actually pretty hot. But it's only now that I let myself begin to really fantasise about her. I lie in bed imagining her through the wall,. The last of the employees were leaving the building and he went to start his car to let it warm up. Once he came back in, ensuring they were the only 2 left in the store, he shut and locked the doors. After a bit of small talk, he says he forgot to turn something off in the office. Saying she could stay up or come back with him, she follows him, not wanting to let him out of her sight. Following him down the aisle to the door to the office they just make random little small talk. Upon reaching. I couldn’t believe the feeling of the smooth nylon on my exposed head. It was so sensitive I knew that she’d make me release my load at any moment, no matter how hard she tried not to. It was inevitable.I was wrong again. Bethany had turned into an expert mastabatrix and kept slowly rubbing and caressing me until I was about to empty all my frustrations into her nylon stocking, then she would stop, keeping me on the edge until the near orgasm subsided. After this she began the slow, maddening. Occasionally Adrian arrives home as they are mounted on me, or I’m kneeling sucking their cocks, very occasionally having me in the ass. I just keep going though, and he stands and watches, sometimes jerking off as the guy cums, and sometimes using my cunt afterwards himself. One time whilst he was away working for a couple of days, three of his friends came around one evening and gang-banged me. I didn’t mention it to Ade when he returned, but they told him what had happened a few weeks later.