She came into the home and kept searching for something in my house. I told her that my wife and kid went to her hometown for summer vacation. She was... so happy to hear that and dropped her book on the table.She came closer to me with so much joy. I pulled her closer and kissed on her lips. I asked her why she was here in between our kiss breaks. She said that she was at my home to clear some doubts about her subject. I smiled and said her dad had no idea what kinda doubt she had in mind and. Well at least as much as possible.So on to the story...The urge to go out dressed was at it's peak during the spring of 2012.This was not helped by the number of daily posts on one of the blogs Isubscribed to showing pictures of so many of the girls having so much funat the bars each night. What kept me inside was the fear of being stoppedby the police, having a flat tire or even getting in and out of the housewithout the nosy neighbor seeing me. Both men and women look at otherwomen and these. We made small talk and then I went to my room and Ava said "we'll talk later; it's important" and quickly ducked into her room, closing the door.In a few minutes there was a knock and my door opened, Ava stood there "we have to talk" she said while I was playing a "God of War Game" and sis came in my room with Wendy her friend. Sis and Wendy both wearing their full slips and had removed their clothes, yes weird; they are two years older then me, both 17. Sis is 5'3" 105 lbs. With brown hair,. I felt her ass pulsating, and I knew I was close. I asked her where she wanted it. She replied with "I want it up my ass."That was all the encouragement I needed. Ten more strokes, and I let my load fly up her ass. I grabbed her hips, and thrusted, cumming as deeply inside her ass as I could. Once my cock stopped throbbing, and depositing its cream in Sally's wonderful ass, I turned her onto her side, and snuggled up to her, her ass still massaging my dick. I wasn't sure if she was trying to.