We just came back from a weeks vacation in California, and I'm still shaking every time I think of what transpired. Let me give you all a few visuals and background. I'm 18, my step-brother 19, and my dad has been married to his mom for 7 years. Basically, I've known him a good chunk of my life. He's very attractive. A little over 6 feet tall, lean but a little muscular, dirty blonde hair, and perfect blue eyes. If you're wondering about me… I'm 5"4, brown hair, brown eyes, kind of pale, skinny, and most guys would call me either average or a little above average probably. Nothing super crazy. Also, nothing at all has ever happened sexually between us up until this vacation. Not even flirting or hints.