I'm a 27 year old male and horny all the time. I'm about 5"7', thin for my height with short light brown hair and blue eyes. I'm a married man but my needs aren't met by my wife.Its 2pm on a stinking hot day in the middle of December so I decide to go to my parents for a swim. My parents are away for the weekend having a romantic get away and my little sister was at home alone.I got to my parents at 2:16pm and knocked on...