My name is David. I am 16 years old and a sophomore in high school. I am about 5'8", very slender with some muscle. I am not weak but wouldn't say I'm strong either. I have neck length, brown hair and blue eyes and my dick is maybe 6.6 inches. About a year ago, I went swimming with my sister, Britney. She is 23, 5'1" with shoulder length brown hair. She has green eyes and a very sexy body. Her tits aren't very big at abou...