This is my first story, its kinda short I know but give me any pointers or comments you like positive or negative.So this story is bout the night my relationship with my sister changed drastically!First off some intros, my name is John, I'm 18 stand at about 6'5 and weigh like 210 pounds I'm on my high school football team so I'm pretty muscular and in very good shape. my sister is Kate she's 16 bout 5'9 and like 105 poun...