I went home to visit my family about 4 years ago. I noticed that my 17 year old brother had grown up to be a fine young man. I had gone out with some friends and came home late. As I walked past my brothers room I noticed that his light was still on and he was talking to someone. He was talking to his girlfriend and they were have a very sexy conversation. He was playing with himself and naked. As I watched him I noticed he had a very nice tool. I cleared my throat and he hung up, I popped in and said whats up lil bro. He couldn't get under the covers fast enough. We talked a little bit and I went to bed, but couldn't stop thinking about his dick. The next day mom and dad went off to work and we were alone. So I started teasing him about what I caught him doing, he was embarassed and did not want to talk about it. I finally told him that I thought his cock was beautiful, and could I see it again. He said no, you're my sister. I told him I would show him my pussy if he showed me his cock, he agreed. WE striped our bottoms off and his cock was beautiful, I wanted it. He was starring at my pussy, so I leaned back and spread my legs for him, he was hard as a rock. I told him to come over when he got next to me I took his dick deep in my throat, I sucked him until he shoot a big load down my throat. He remained hard. I asked if he was going to return the favor. He got down on his knees and started licking my pussy, I came so hard I screamed. When I looked up there was my mother standing there, she came home for some paperwork she had forgotten. She didn't say anything she just bent over and stuck her face between my legs and started eating my soaking we pussy. My brother and I were in shock, and could not speak. She finally said to my brother are you just gonna stand there with that hard on or are you gonna do something with it. He then stuck his dick in my mouth, my mom moved up to share his pretty boner with me. She finally undressed, while she was sucking him I moved down to eat her pussy. Then I watched my brother enter her doggy style while I went under to lick his balls, her pussy while my mom ate my pussy. I have never been so satisfied. Now every time I come home we have a session. . My mom comes to visit, we stay in the same bed, sometimes she brings my brother. We are trying too figure out how we can get my dad involved, I would really like to suck his cock.