My dick was instantly hard. Dirty images of my sister fogged my mind. I pushed my shorts to my knees as I laid on the bed. The panties pressed to my n...ose as I stroked my young cock. The thoughts of Sis were explicit and dirty. I imagined pushing my dick into her. My eyes opened when I heard the click.I had forgotten to lock the bathroom door. Sis was standing there watching me. She grimaced and shook her head. ”I told you that is nasty. You want to sniff the real thing, not dirty panties.”I. I didn't really think she would disappear with him. I look around the house. It is getting late and the crowd has thinned out. I start to go upstairs but then remember what we did at the last party. I go downstairs and look around to see if I can find them. At the bottom of the stairs I look into the rec room and see a couple of guys playing pool. I turn in the opposite direction. As I move through the downstairs rooms, I hear the unmistakable sounds of passion coming from a small alcove. It is. About that time our young waiter comes over to ask ifthere's a problem, and he sees Mom wiping off the top of my massivebreasts and his jaw drops and he just stands there staring at what'sgoing on in the booth. And then to make it worse, Mom reaches down intomy blouse, searching for the wad of spaghetti, and while her hand isdown there, she's not missing a chance to fondle my breasts or tug on mynipple rings. The waiter is standing there and if I thought his jaw wasopen before, it's like, even. Despite their machismo, they were content to be the betas.After a good long romp, Shelby asked, "Want to swap partners?" With whom?" I asked."Josie, Tamara, and me. You fuck Tamara, Max fucks me, and Anton fucks Josie," Shelby urged me."Very well, then. Let's do that," I agreed, slipping my cock inside Tamara to fuck her furiously.Max slammed his dick up Shelby's cunt, further exciting her, while Anton did the same for Josie. Tamara began cussing in Serbian, really loud, as I took what was.