She grinned and kissed him and mouthed the apartment number, then ran up the stairs and said in a sexy voice "catch me if you can"They raced up the st...irs and she let him catch her at the door, he slipped his arms around her and she laughed a sultry laugh and deeply kissed him, he felt his whole body warm, and his heart race, her soft lips were making him wild. His eyes rolled back into his head and he kissed her back.She smiled and broke away long enough to open the door. She took him by the. She looked at my cock and then looked at me and giggled with excitement. She said, "I don't think I'll be able to get all that in my mouth."I told her not to worry and that we will work on it. She put my cock into her mouth and just like the rest of her body, her lips were so soft. I just looked down to see my cock in my sister-in law’s mouth and could not believe what was happening. At first she only put in two inches out of my seven inch cock into her mouth. I think she was a little scared. I shuddered, my pussy on fire, juices running down my thighs. Daddy was waiting downstairs naked, his hands at his side, looking a little nervous. He looked up, and I grinned at him. I rushed at him to kiss him, but he put his hand up against my collarbone pushing me back. I blinked as he recoiled.“What?” I asked.“You have your brother's cum on your face, honey,” said Mom. “Oh, right,” I said. “Sorry, Daddy.”Mom threw me a towel that she'd brought down, her face already wiped clean. She was. At a specialty store called Pretty Pussy I found a size two teddy of black lace covered by gold fishnet and brought it home for my fuck toy to try on. She wiggled into it and I smoothed it down between her thighs as she tossed back her huge mob of golden hair and stood up straight, thrusting out her young breasts and smiling as I tied the gold bows down the back. When we started swapping three years ago, she was a 28-B and now, at age 15, she was a 34-C and, I hoped, still developing. Her.