When I got home there was a UPS truck parked in the driveway, which must have been delivering my supplies for the office. However there was no ups guy...anywhere to be found. I figured he must have parked here and continued to the next house on the street making another delivery. We live in a large two-story home with our master bedroom overlooking our pool in the backyard. The view from the bedroom is breathtaking. As I walked through the house I heard voices coming from the bedroom. As I got. At 12:00 Trent got up from his bed and went to his sister's bedroom naked deciding on what he should say. As Trent reached the door he heard his sister and Elizabeth giggling, and he saw that they had a long chrome viborator and were taking turns slowly fucking themselves until they hit their climax, and then they would drink up the juices and switch roles. Trent decided that their playing with toys had helped him for his entrance, and his cock had now become fully erect with the action he had. .. 'STOP'. What the fuck was I thinking? I had just fucked my wife's sister, inadvertently pissing all over our marriage vows, and now here I was thinking about finding an opportunity to do it again? No. This had to stop. Despite my best efforts, I had a sort of half erection all day at work, unable to get my smoking hot sister in law out of my mind. I staggered through the rest of the day until quitting time, failing to get any real actual work done along the way. I drove home, heart. "Take these people wherever they want to go and come back here for your fare."Whew!! You couldn't ask for anything better than that! All that worry for nothing! After we pulled away from the hotel entrance, and Shelly gave the driver her address, we leaned back. I knew I was navigating in uncharted waters, but I timidly put my arm around her shoulders. She came willingly to rest against me, and even reached up to kiss my cheek. It was a long cab ride; but it seemed only minutes before we pulled.