I was 18 when I first had sexual fantasies about my older sister Nicole who is 19 years old (now 21). We were sitting on the floor eating lunch after swimming in the pool, while we were eating she crossed her legs and I could see her brown pubic hair sticking out of the sides of her bikini bottom. I found myself staring and getting a boner so I went to the toilet and had a wank fantasising about us having sex. Ever since then I masturbate almost every night to the vision of her naked in my head. She is now doing a TAFE course and I am taking a year’s break before I go to university. One day she took the day off and I went out with friends for the day. I got home around 4 in the afternoon and I would have been home alone for 2 hours before Nicole got home and we would be home alone another 4 hours until our parents got home from work. Anyway, I got home and noticed she was sunbaking besides the pool she looked like she was asleep so I didn’t disturb her. I went upstairs and looked down at her from my bedroom window and noticed she had no top on and instantly I got a erection so I went into the bathroom and had a wank. When I came out I looked out of my bedroom window again and she was naked about to walk into the house. I thought to myself now’s my chance I really want to fuck her. I knew she was coming up to the bathroom to have a shower so I ran into the bathroom and wet my face and hair to make it look like I had just got out of the shower. She walked into the bathroom and she was naked as was I. She is about 5 foot 6 and has nice size breast with puffy pink nipples and a well shaped body she was a little chubby but the good chubby she had a nice bush a pubic hair covering her pink pussy lips, she had shoulder length brown hair and a nice arse. I have an athletic build about 6 foot 3 and my cock is around 8 inches. When she walked into the bathroom she instantly looked down at my cock, she made no move to cover herself up she just stood there looking at me. I was getting an erection and she started smiling at it. I asked if she would like a taste, she didn’t say anything she just walked up to me a kneeled down in front of it. She grabbed it and started licking my shaft up and down. Then she took it in her mouth a little and swerved her tongue around the head of my cock. I started breathing loudly my dick had gotten bigger than I have ever seen it. She started sucking on it and taking the whole thing into her mouth I knew I was about to blow my load so I pushed her head away and told her to lie down on the floor. She did as I told her she opened her legs revealing her wet pussy I put my head between her legs and started fingering her and sucking on her clit. She started moaning and was getting very wet. I started sticking my tongue right into her love hole and all of a sudden she screamed “I’m going to cum!” and my face was covered in her juices I started licking them all up. She was now asking me to fuck her so I grabbed my cock and rubbed the head of it up and down her pussy lips. I blew my load right over her pussy before I put it in her, she sat up and laughed at my when grabbing my dick to get it hard again. It didn’t take very long so I put it in her pussy a couple of inches then pulled out and thrust it all the way in. She started moaning and pushing into me as hard as she could in time with my strokes. We were fucking like this for about 15 minutes and she came 3 times. I felt my dick twitching and the cum about to burst out of me and yelled “I’m going to cum!” I was about to pull out but Nicole wrapped her legs around me and held me there.. I came inside of wet hairy pussy I was in heaven I pulled out and watched the cum drip out of her cunt then the unthinkable happened... Our mother walked in.