I was back home about 5 days, when my wife got a call from her mother. She told my wife that something was wrong with her dryer and if I got a chance,... could maybe come and check it out for her.She told her mother I would, but it might be a few days before I could.She told her mother to load up her dirty laundry and come and spend the weekend with us and visit, and she could catch up on her laundry while she was here. My mother-in-law reluctantly agreed and said she would be here tonight. Time. The text was just as daring, "do you want to be my slut?" it read. I never hesitated and agreed to meet the next morning for more than just a touch and grab session.I was the first to arrive so I had time to prepare. I was nervous, excited and terrified, but more than any of that I was turned on by just the thought of what was about to happen. I heard him pull in, the distinct sound of the Harley just added to my eagerness. I had thought long on what I would wear and opened the door to him in. So we sent pictures of our genitals and nude bodies without showing our faces.For the first time in my life, I had seen such huge boobs. She was a little plump but she looked damn sexy. Anyone would want to fuck her at first sight. She had perfect round boobs.After this incident, we used to send pics of each other in inner garments. She would send me a pic of her whenever she bought a new bra or panty. Then that would be soon followed by some hot sex chat and then nude pictures of her. "You are related to me,aren't you?" she asked. "You are a horny devil, just like me. I wantmore, but now I want to ride you. I want to feel your cock inside of me.With that, she rolled me over and sat on my stomach. She reached behindher and started to play with my dick and balls. "What do you have togive me, big brother" she inquired while she was playing with my balls."Anything you want, little sister. Put my dick in your pussy and rideme." I replied. I love to have the woman on top. She can.