Jenny never kissed me, then or ever. Sexually I mean. Yeah she’s given me those polite public kisses that people expect a sister to give her brother...at times and an occasional closed mouth kiss after sex, but she never kissed me passionately. I guess I understood why, even though I really wanted her to kiss me deeply and passionately more and more as my love for her grew. Jenny made all kinds of rules I had to obey. I was not allowed to stick anything in her pussy, not my fingers and especially. Her moans and our thrusting caused the bed to go squeak, squeak, squeak, squeak. This must have attracted the attention of my mom and Aunt Margie as I slowly became aware of their presence in the room. I saw Mom standing holding Aunt Margie in her arms as they watched. Both had a very loving smile on their faces and from time to time they would kiss each other on the lips. They moved over and sat on the bed beside us and Mitzie looked up at them, smiled and continued to thrust her little pussy. I occasionally visit my brother like once or twice a week as we stay nearby, especially to look at my Sister in law. My brother is a big nerd, he never spends much time with her as he is busy with his works. I also feel he never has sex with her as they don’t have a baby yet.This week, my brother had gone to Singapore for a business trip for 10 days. Deepti and I were chatting casually and asked her why she didn’t go with my brother to Singapore. She was mad at me for bringing it up, she said. Am I doing something wrong?"I laughed and said her happiness was more important to me."Tell me Mommy's secret. How did she made you fit inside her," she begged, grasping my thick hard prick to her belly. I hesitated. Oral sex for her seemed wrong."Oh, come on, darling," she crooned, tracing her fingernails along the length of my prick and taking my sperm filled balls into her hands and softly playing with them.I told her. She was amazed that her mom could take such a big thing into her.