I moved on. Or so I thought.My buddy from the underwear drawer days was back in town. He had moved away a couple of years earlier with his mom after t...he divorce. He was now staying with his dad for the summer. There wasn't a lot to do in our small town so we spent the summer playing games, and talking about girls. My sister was rarely around as she had gotten a job at the swimming pool and was out most nights with one boy or another.The usual summer trip to Grandma's came and since my sister. He was holding her tight until Dave tapped his shoulder to take his place and also got a kiss. Dave ran his hands over her, gently, and we could see her respond by snuggling in to him. Jeff called over to her "you know Sue, this is very unfair to us." "Why is that?" she asked him. "Because you have seen us naked and we haven't seen anything of you." At this point I stepped in and danced close to her. She held me tighter than usual and was obviously very aroused. I bent to whisper in her ear.. The vibrations tore through the bus, visibly moving the seats. How much longer can I last, how much more stimulus would the city throw at me? I promised myself if I saw one more tantalising thing I would jump off the bus and walk the rest of the way home. We passed by a corner shop with fresh fruit outside, god don't look at the bananas I screamed at myself silently in my mind. Then a doughnut shop, why is that even sexy I thought, struggle to maintain control. Finally we pulled into a bus stop. She said that lie down. I lied down. She just sat on top of me and inserted my dick in her vagina. I was not thinking about condoms or anything. In the heat of the moment I forgot about it. She just sat on my dick and inserted that whole dick into her pussy. I was just feeling every inch of her pussy. I never had tried this position before.So, I was lying on my back and she was sitting on my dick. She inserted the dick completely. Then she slowly got up. Her pussy was rubbing my dick. It felt.