This is based on a real event but is much nastier in this telling than it was when it happened. It's about me and my adult nephew. My half sister is 20 years older than I am and Jon, the oldest of her three is only 10 years younger than I am. We are basically pals and not very conscious of the fact that we are family. He is athletic, well mannered, and easy to talk to. He came to visit for the weekend, arriving late Friday. We had a few beers, chilled for a while and then decided to go to bed because we were both really tired, and agreed to get an early start.
I woke up pretty groggy and foggy and went to the kitchen to make coffee and breakfast. Meanwhile there is no sign of Jon - my nephew. I went to his room and knocked, and as there was no answer I cracked open the door. I guess that woke him up. He said "Hi, sorry I'm so slow this morning," and started to get out of bed, but as the blanket shifted as he rolled over, and that exposed his morning wood - completely. I had no idea that he was so big. At least 7 inches and with his skin surrounding his clock head, it looked like a torpedo, smooth and with prominent veins. I blurted out "Sorry to disturb you!" As I turned to go back to the kitchen he said "No worries, you have one of these too, don't you? Come back in here."
I looked at his hard cock more closely, which made me breathe faster. His skin covered all but the tip of his head except for the area around the hole, which was pretty large and glistened with his morning wetness. He looked at my growing bulge and then at my face. He smiled and said "no hurry. We can rush slowly this morning. I want to see yours," leaned over - I had moved to the side of the bed - and pulled my sweats down. My cock flopped out, all semi-hard 6 inches. He looked at it, looked straight into my eyes and said "nice, I've never been this close to a cut cock before." Before I could answer or move, he touched my head with a finger, rubbed it gently around the tip, and then wrapped his warm hand around it. After a few strokes he said "Get down on the bed next to me and get on your back." I did as he said, speechless. He got on his stomach. I was on my back, and his mouth was real close to my cock. He breathed gently on it and the warmth enveloped me just before his lips and mouth. I was in heaven. His tongue caressed my shaft. He moved his head slowly in just the right way. His mouth was so wet that some spit ran down my shaft as he lifted his head and then he sucked some of it back into his mouth as he moved down. He drenched me whenever he opened his mouth to release me and then take me back in and began again. In the moment, I regretted not being with for a man for a very long time because I had never had it like that from any woman I'd been with. I couldn't talk, but just made some noises of pleasure. He worked for a couple of minutes more and then, without releasing my cock said "cum for me now!" Hearing that, my toes curled, my whole body shook, and I it felt like I'd filled his mouth because he let some of my cum drip out of his mouth onto my crotch. He made a happy sort of grunt/slurp, and keeping a few drops of me in his mouth said "Good morning uncle. It's gonna be your turn when we get back here later on today."