My girl Melanie and I have been together for 4 1/2 years. She is a great girl, short and sexy. For the past couple of years I have pleaded with her to bring another women into our bed. Don't get me wrong, the sex has been great but like every guy I have that threesome fantasy. She always seemed annoyed that I wanted another girl involved and my continuous pleading didn't help the cause. One day I really made her upset. I...