She ran a finger between her pussy lips and stuck it in her mouth. She said my pussy is already wet just thinking about Keith's thick cock.She slipped...a short dress over her head and put on her sandals then told me she would be home later with a pussy leaking Keith's cum. I laid there struggling to get free, it was no use, she and I had played tie up so much she was a pro knot tying hussy. I could see the alarm clock on the nightstand it was eight o clock when she left. I fell asleep and I woke. “Knowing my sister like I do, she wouldn’t have visited us.” Laughing, Kari continued, “She probably would have disowned me.”“Ding, ding,” went the front door bell.Kate jumped up off the couch and said, “I will get it.” A few moments later, they heard Kate say, “Hi, Aunt Barb. Hi, Uncle Jerry. It is so good to see all of you.”Kari thought, ‘Oh, shit.’ The whole family was nude. She didn’t care if someone saw them nude, but to have family members come unannounced and surprise them was a little. It fitted snugly - a little too snugly, if you want to know the truth. It made me quite flat, if you know what I mean. Next, she appeared with a brassiere. I put my arms through the straps and Sarah hooked it up behind my back. After some adjustments, it fitted quite comfortably apart from the empty cups. "Hmmm..." she said, thoughtfully. "I've got an idea." She wandered off and appeared a few minutes later with a couple of water-filled balloons. "We'll try these for the moment." And she. I knelt there on the desk, bobbing up and down on the dildo, as I listened to the exchange. At first I was worried about how the conversation was going, but when Sir came to my rescue, I was beaming with pride. I was HIS girl, his slut, and he told Derrick that. My heart soared and my pussy gushed. "Yes, Sir. It won't happen again," Derrick said. "Good," he said. Then to my surprise, he turned to me. "Now, slut, I want you to see what you can do to help Derrick with his 'problem'. We have work.