I was 19 at the time, my sister 22. Our brother (the middle child) had moved out but my sis and I preferred the cheaper option of living at home. My sister was attractive - not drop dead gorgeous like some of her friends who I enjoyed watching sunbathe in the backyard. She was tall for a girl, at over 5'9" and had long black hair and a dark complexion and had in my opinion a near perfect body. Her boobs were big and had no sag, being just over a big handful and she had a round ass that had just the right amount of jiggle. As far back as I remember, she had always worn nightshirts or shorts and a t-shirt to bed, usually changing into her comfies once she got home from work and wearing them around the house, unless she was planning to go out. One exception was when her friends from high school that were still around came to hang out in the summer.
Our backyard had a lot of privacy because of the large garage, neighbour's fences and a couple trees along the edges of the yard. So, my sister and her friends would often tan in the backyard - laying out on the picnic table and chaise loungers we had. They would change into their tiny bathing suits, coat themselves up with lotion and hang out in the backyard listening to music, chatting and having some afternoon drinks. And my bedroom had the perfect view of it all - on the upper level, overlooking the backyard. It was also fantastic that her friends were all gorgeous and seemed to fit every body type I liked.
Laura was short, cute with a nice firm looking ass and huge tits that were often hidden under baggy sweatshirts, but not when she came to tan. Her bikini creeped up the crack of her ass and her top barely had enough fabric to cover her nipples. She was a regular in my jerk off fantasies and often my focus when jerking off in my room while watching them tan. Once I had caught a glimpse of her getting into the shower in all her naked glory when she left the door ajar and that lived in my memory rent free to this day. Sheryl was average height and slender with a toned smaller ass and medium tits but had the most beautiful face and a smoky voice. I dreamed of her big pouty lips wrapped around my cock often. Tawnya had a very athletic frame - she was a skater, volleyball and softball player with toned muscular thighs, what looked like a rock hard ass and almost washboard abs. With her perfect grapefruit-sized perky tits, she had the total package with just enough toned muscle to be sexy without being a turn off. I had also caught a glimpse of her naked body when she and my sister had come in from the rain and stripped off their wet clothes in the basement and then ran upstairs to my sisters room to find dry clothes - another memory that lingers and fuels my jerk off fantasies to this day.