Shivering slightly as the cool air hit my bare skin, I quickly dressed and hurried out the door.She was waiting by our usual start point when I arrive.... Without hesitation, we both began loping along, used to our normal routine. We moved in silence for a couple of minutes, before Kat glanced sideways at me, “You look like hell.”I wasn’t surprised to hear that I looked as tired as I felt, “I didn’t get much sleep, had a weird night.”Kat seemed to perk up at that; she often complained that I. ”“Dad what are you telling me?”“I’m telling you that Laura is your mother, Amy is your identical twin sister, and Tommy is your half-brother.”I just sat there not knowing what to say or do. I have a mom now, and a sister I didn’t even know about!And I had sucked off my half brother and I even licked his asshole and he had whored me out to his friend.I had even watched my mom and my identical twin sister have sex together in a movie, (I have to watch the rest of that movie.) And I even watched. I suddenly looked around to find Holly had taken off her top somehow. I then looked at the floor and saw some black rags tossed onto it. That explained it. After 10 minutes of titty sucking I got up and pulled down my jeans and boxers for the second time that day. Holly then sat up on the edge of the sofa and leaned forward, taking my rock hard cock into her warm mouth that I’d just spent ages kissing. Again I was amazed at how well this girl sucked my cock even though it was probably only her. He was pleasant and to look at he appeared strong, medium height and in his late twenties early thirties.Suddenly I realized that something was poking at my bottom, I could feel his body close to mine and his breath on my bare neck, as it was July and it had been a real warm day I was wearing a light floral dress with a cardigan (as we were all packed in like sardines I had taken the cardigan off) and small heals, through the light fabric of my dress I could feel something hard pressing up.