She said that they were her Mum's....... "Oh", said I.Days past and I was quite involved with family stuff with sister and bro in law and hoping to ge... Lisa out on an early and leave me in bed again. It eventually happened and it was a lovely warm morning with sun pouring in through the bedroom window so I was lying on to of the duvet. I could hear Mrs. D around the upstairs and started thinking about the brown and gold underwear I'd seen on the line. I was getting hard and based on the plan. The girl and i were aching for some cock and it looked like it was going to be a battle see who got there first, then elliot said to me 'stand up' which i did, he then turned me so that i had my back to him and thrust his hand down my knickers, over my 100% shaven pussy to drenched hole, the girl by now had again began sucking him, and spitting on dick as he began to finger me, he started with 2 fingers then within seconds he had 3 up me, then 4, - it felt so good, and he was doing it so fast,. Then he waggled a 'come here' finger at Kristin. She tried to shake it off, but he was persistent."Oh, wow, this ought to be interesting," Warren said, seeing what was going on."What?" Evan asked."Tom's trying to get Kristin to play." Your sister?" Yeah. She's very good, but terrified to play in front of people." Well, he got her over to the piano," Evan pointed out."Hey, guys," Tom told the cast, "This is Kristin. She's my girlfriend, and Warren's sister. I want her to play because she blows. She shouted with pain, meanwhile I kissed her and exchange her cum in out mouths. I said, “Now onwards you are not my sister. You are my slave and I am your slave. We can use ourselves to do whatever we like.”After that we came into 69 position, I am sucking her remaining juices from pussy and she was sucking my limp dick. My dick starts growing in her warm mouth. Now I am ready to enter my sister’s pussy. I asked my sister to open her pussy lips and look in my eyes.I kept my dick head over her.