I heard the front door click as aunt Martha left for work then got up and went to the bathroom down the corridor in my pajamas.

    I was brushing my teeth when uncle Mike came in behind me and I saw in the mirror that he was completely naked. A tall, muscular guy, hairy chest, belly and limbs and a big (and I mean really big)  cock hanging over his balls.

    I suppose I mean it was big compared with my own cock which is no bigger than a boneless pinky even though I’m almost 16. I have a complex about it even if the doctor says it’ll grow very soon, I’m just a late developer.

    Uncle Mike’s cock looked like the real thing. Not all that big lengthwise because he was flaccid but thick and stubby, a mean piece of man weaponry, and he was shaved down there so everything was clearly on display.

    He pretended to be surprised to find me in the bathroom but I knew he must have heard me pass his and aunt Martha’s bedroom because I’d been whistling.

    He reach for his own toothbrush and gestured at his nudity. ‘You’re not bothered ?’ he said. I shook my head. I was both curious and slightly embarrassed by seeing him naked but his own naturalness was calming.

    I started to go out of the bathroom but he said to wait for him. He finished with his teeth, splashed water on his face then grabbed a towel and grinned.

    ‘I want to show you something,’ he said. A moment later, we were in his and aunt Martha’s bedroom. He lay down and patted the place beside me and I lay down too, me in my pajamas and him nude.

    My uncle started to talk casually, questions about whether I was enjoying my holiday with them and about school and if I had girlfriends (of course, no girl had ever looked at me then). While he was doing this, he was openly touching himself right in front of me as if it were the most natural thing in the world.

     He ran his fingers through the curly thatch on his pecs and on his upper belly and finally took his cock in his hand, fondling it unhurriedly between fingers and thumb and rolling back his foreskin. It hardened while he was doing this, swelling in length and girth.

     Mike was still talking and his eyes were on my face while my eyes tried to hold his gaze but I couldn’t stop myself glancing down all the time at his hand working his big cock.

    ‘You ever wank another guy?’ he asked but didn’t wait for any answer. ‘I want you to masturbate me.’

    ‘I don’t know,’ I said panicked and wondering what to do. ‘Yes you do,’ he said. He grabbed my hand and put it on his cock. It was big and felt hot and smooth with that delicious yielding firmness that hard cocks have.

    He pulled me closer to him and when I said I didn’t know what to do, he whispered : ‘Just do it to me like you do it to yourself .’ There was an urgent neediness in his voice that excited me. I sensed our rôles had changed. Now he was mine.

    He was flat on his back as I started to masturbate him, scarcely able to get my fingers all the way round his swollen shaft.

    ‘Oh yeah,’ he groaned, repeating ‘yeah, fuckin’ yeah, wank me’, wank the fuck out of me’ as I pumped him. Then, almost a scream of ‘oh fuck, oh fuck yes man, oh fuck, fuck, fuck’ as a fountain of creamy sperm shot out of him.

    The next morning, he didn’t have to ask.

    Aunt Martha drove me to the station on my way home after the holidays. 'I'm so glad Mike and you became such friends,' she said. 'I was worried that you might not get on together. Anyway, I hope we haven't been too boring for you.'