She looked up into my eyes, pleadingly. I knew what she wanted, and easing her away from me for a second, quickly undid my belt and trousers, pushing ...hem down to my knees. I held out my arms to her, and, grinning, she almost jumped up to me. I eased her around so that her back was to the wall now, and rubbed my cock on her wet snatch. She moaned again, and I eased it inside her, just a little, having to adjust my feet to get used to this position. Her cunt was on fire, I could feel the wetness. I didn't have to wait very long however as it was quickly answered by an embarrassed looking 35 year old man, wearing nothing but a pair of pink lace panties. He quickly tried to usher me inside, but I stood at the door for a little bit enjoying watching him squirm. I could tell he was worried someone would see him from the street.I finally entered the house, and allowed him to close the door behind me, he mumbled hello, and I could tell he was clearly a bit uncomfortable as well as horny. . Not sure of what to say. Obviously I had been shocked, to say the least, at what happened tonight. I couldn't believe the metamorphosis that Sonja had undergone in such a short period of time. She had gone from what I had perceived to be a normal woman to a manipulative, demanding, wanton slut in six short months. Sure I found it incredibly arousing; this was, after all, what I had been fantasizing about for years. But now it was a reality. I wasn't sure I could enter into a relationship with. Either way, he was going to that concert.It was going to be a big one, too, outdoors, with half a dozen other bands playing, lasting pretty much all day. Since it was close to home, he didn’t have too much trouble talking his parents into letting him buy a ticket. He even convinced them that he should be able to drive there himself, rather than have them drop him off.There was only one catch. He had to take Cassie along. He could live with that, though. She wasn’t too bad as little s!sters.