As a young person I was a late bloomer, I had discovered the joys of masturbation but hadn't really figured out all the details about sex. My body was slim and I had a lot of pubic hair. My entire sexual experience was limited to what I saw in magazines while stroking myself to orgasm.
I was spending a weekend in a cabin that belonged to my parents. It was nice to have time alone there to hike and relax. There was a small dirt path that passed behind my cabin, but otherwise I was isolated from the other cabins.
After returning from an evening swim at the lake and opened the windows on two sides of the cabin, I took off my suit and laid back on the bed. Laying naked with a small breeze flowing over my damp body had me asleep in no time.
The next morning I awoke to what I thought were animals chirping outside. But as I lay there half asleep I began to realize that it was not an animal noise, but instead the sound of giggling girls. At first I wanted to ignore it and fall back to sleep, but something told me that I had to see what was happening. Laying on my side, I opened my eyes and could see the windows behind me in a mirror that was mounted on the wall. I was stunned to see two girls looking in the window right at me! They were whispering to each other and giggling.
I was so embarrassed, laying on my side naked in front of two girls. They could only see me from the back, but still had a full view of my naked butt, which was bad enough. As I awoke more, I realized that during the night I had kicked the covers off the bed, so there was was nothing to cover myself with. I thought about getting up but I didn't want them to know that I knew they were looking at me. So I lied there, waiting for them to go away. But they seemed interested in staying. I tried to listen to what they were saying. Their whispers were mostly unintelligible, but I could hear pieces.
"I want to feel him." (and a lot of giggling)
"I wish he'd turn over so we can see his front."
"Oh my God! Do you think he will?"
"He's bound to sooner or later."
I was curious if they really would wait there until I moved. I peeked a little closer in the mirror and saw they were both really pretty with long dark hair, and around my age. Both had on bathing suits which caused my mind to wonder if they ever saw a naked mam before. They were just curious, so why not let them see me?
The thought of letting the girls see my naked front was dancing in my head. After a few minutes, I realized they were not going away. I made up my mind to just let them see what they wanted to see, and pretended to stretch in my sleep. Slowly, I began to turn. As I did I realized that my heart was pounding. I slowly turned my body keeping my eyes almost closed.
I heard one of the girls say, "Oh my God he's turning over!"
"Oh my God!" exclaimed the other.
"I can't believe we're seeing this!"
Now I was naked, lying on my back with my arms upturned and above my head. My legs were apart and I had one knee slightly cocked to the side. I could feel the breeze on my body which made me intensely aware of my nakedness. And that I was totally exposed and displayed in front of two very cute girls. Through my half opened eyes I could see them in the mirror. I did not want them to know I was awake as their eyes stared widely at my exposed body.
"He looks like one of those boys in the paintings we saw at the museum. Remember?"
"Yeah. Look how he has a lot of hair down there".
"I like how good we can see all his parts!"
Hearing all this while being on display for the girls was having an effect on me. My cock started to enlarge. And I knew there was no way these girls were not going to notice. Soon it was sitting up off my belly at full attention.
"Oh my God look! He's getting a boner!" one girl squealed.