When I was 12/13, I was at a school where after gym we showered - nude. In the 70s this was quite normal, and I didn't mind. In fact it gave me a chance to see the other boys completely naked. Which turned me on.

But the gym teacher wanted to be sure that we had showered properly. So after the shower we had to walk, naked, into his cubicle and he looked at us - at our genitals, mainly, because he was sitting. He obviously liked little boys. Crew cut, I remember him well.

But it only dawned on me slowly that he had this interest. When it did dawn on me, and here is my confession, I fantasized about it. What it would be like to be naked in front of him and get an erection, for instance. Or what naked gym would be like. Or having to show myself naked to the girls in my class.

So I started to show him I liked this. I would linger a bit, laugh, allow myself to get almost hard: that short of thing. I didn't know what I wanted, I was way too young, but I found it very exciting to contemplate more nudity.

And sure enough: he caught on. I had been right. He started to look carefully "if I had showered all over"; up to the point that once he even lifted my penis to look behind my balls. I found this so incredibly exciting that I got stiff instantly in his hands. This was the first time anyone had touched my penis.

I pulled back, and said something like "I'm shy in front of the others".

"OK", he said. Off you go. But if you like, you can help me tidy after school. Be here at four on Wednesday.

Wednesday. At four, I was back, anticipation screaming through my body. What would happen? I had only the vaguest idea.

"Hello", he said. OK, it's just you and me, and I'm glad you're helping". With that, he handed me a chair or something to put in he corner.

"Wait", he said as I was about to pick up another chair. "I don't want your clothes to get dirty. Your mom will kill you". Better take them off. Come on!". And he proceeded to the change room..

But this time it was just me and him.

"All of them? Go naked?", I asked peevishly.

"Yes", he said. "And you know what? I'll do the same. OK?

I nodded. Not knowing how to react. So as I removed my clothes, he did indeed do the same. So we stood there in a moment, both completely naked. I looked at his penis, the first adult one I had seen. Wow! So much hair around it! As I looked, I got rock hard. My penis pointing straight forward. Wow.

"Ok, help me"—and with that, he walks back into the gym hall. I follow, and work while I lose my selfconsciousness. I found this the most exciting thing I've ever done, and I'm sure my Penis pointed straight ahead most of the time.

After half an hour, which seemed to me much longer, the balls and ropes and everything else happen if you put away. "OK, let's get out of here", he said, heading towards the change room. And showers.

And yes. This time we both showered nude. Just two of us. And as he stood next to me, I got rock hard—and then, so did he. I found this so exciting... "I'm all naked", I kept telling myself.

He smiled, and moved closer to me. And I found the courage to ask What was really on my mind. "Can I touch it?"

He smiled. "Yes". So I did. I felt how warm it was and how hard. And I kept thinking of the fact I was naked, and he found me interesting. And my penis was ready to explode. And soon, he reached out to touch my penis, and as soon as he did, I exploded.

He made me swear to secrecy. And it never happened again. But to this day this is one of the most erotic event that has ever happened to me.

And that is my true confession. I was 12. Now I am 54.