After our first time, we didn’t got time to really do it as due to mostly there would be someone at home. Even on sundays, we all family members are...together. Almost a month time, me and her decided to go for a movie. We decided to see a animation movie, morning show. We went to the theatre and took the platinum ticket, as not many people would go for platinum seats due to high cost and that for animation movie in morning show. My sis was really excited, she wore knee length skirt and tshirt.. Lisa takes after her mom. Very pretty in a “mom next door” type of way, not a head turner but beautiful eyes, short auburn hair. You know the type. I don't have a picture of her that I would publish but this lady is pretty close to her lookshttp://xhamster.com/photos/view/2003214-32904113.html“Ummm this is very nice” her mom said and got closer to me, grabbing my left arm and putting it closer to her. In the movement, I moved it a little and made sure she felt that I was rubbing her tit. If she. She told me to pull my cock out and compare it to my moms dildo.I pulled down my fly and my cock hung out as my sister looked on. She told me to stand fully naked and hold the dildo up next to myself and she’d judge.I did as she asked and she pulled off her panties and looked between her legs at me. She pumped a globe of anal lube on her hands and began swirling it onto her asshole that was tight and pointing at me.She asked me to come closer and she grabbed my moms dildo and knocked my hanging. But they would say things like, "Hey that looks good on you," and so forth just to tease.It was Saturday, the first day of a two week school vacation, and I was stuck home. Two of my mates from school had gone away with their families, and the other was in bed sick, so I had two weeks off and no mates. I was in the lounge room watching tv. Erin had gone to her friends for the day, and mum was working.Sue came out from her room and said, "Some time this week I need you to help me with a skirt I.