I knew she too was a pervert like me but just didn't understand why she was avoiding me after all what happened in the last few days. She was reluctan... to move too. She stood naked and I could see her pussy and ass all the time. But after 30 minutes, I could see her twitching a bit. "I can't hold it" she said and squatted on the ground. I didn't know what happened to me but I decided to take control. I upped my pervertness."Wait" I shouted."I am not going to let you go this easy" I shouted and. The main people in this story are my dad, my mom and me. Other people are mentioned but are not important to the tale. My dad, Greg, is a big guy. He is probably about 64, stocky, with a wild curly beard and curly hair. Dad has sharp blue eyes, squinty, from working outside most of his life. For what I look like, Im 51, with black hair and brown eyes. I developed early so although Im only 16, I have D cup boobs and a thick booty. I am chubby, but I think its proportioned well enough that Im. "I"m going to cum in her asshole Kristen, do you want to suck it out and spit it in her mouth?" "yeah I"ll suck your cum out of your sister"s ass and spit it in her mouth just for you".When she said that I shot my load into my sister"s asshole and kristen walked over with a look on her face that said she was eager to to suck the spunk out and spit in our slaves mouth and she did just that. After we finished sexually abusing my thirty year old sister we comforted her for about an hour telling. The teachers usually made their way done as soon as the last student left their class room. The guys begin to encircle Billy and I and I thought that they would influence Billy to attack me or worse. I moved back to the wall away from Billy and the guys, the janitors closet door to my left and the guys forming a horseshoe ring. Billy spoke '...good damn thing you are such a good dick sucking Bitch, if you weren't I'd kick your teeth in...' the group howled in laughter and urged Billy to.