My sister Donna and I were spending the week at our Aunt's house. It was a pretty big house when you consider my aunt was single and lived alone. The house was 2-stories and had 3 bed rooms and was located in a forested area where you couldn't ever see your neighbor's house. She even had an in-ground pool. It was perfect for when my sister and I visited. Our parents dropped us off and then went to enjoy some time alone together. They did this every year.
My sister is less than a year younger than me; she has straight reddish brown hair that goes down to her waist, a few freckles on her nose and a petite physique, along with a somewhat small chest. We got along just fine together. My aunt favored my sister completely, but she was still nice to me too. There were just some things I had gotten used to through the years. Like my sister getting to choose what we watched on TV or letting her have more ice cream, stuff like that. When we were younger that's was all there was to it.
Our first full day there my aunt was taking us to the beach, she was about 36 years old and looked pretty good for her age in the 2-piece suit she was wearing. She was tall and slender, almost my height, her chest put my sister's to shame. She was twice my age and my aunt but I could still tell that she was nice looking. She was taking her friend Amy, who was about her age with us. Amy was fun to be around; we had met her the previous year. She lived near my aunt, walking distance, if she felt like walking instead of driving. She was the kind of person who is always joking and looking for fun and action; a bit of a wild one. She was a cute blond thing, shorter than my aunt; only about as tall as my nose.
It was a bit of a long drive and of course my sister got to choose the music we listened to. I think she took advantage, just to tease me she picked songs she knew I wouldn't really like. The day at the beach involved a lot of water, sand and sun. The latter of which was running out, so we decided to leave. Donna and I stopped at one of the outdoor showers near the boardwalk to rinse the sand off. I knew my aunt loved her car and would flip if we got sand in it.
We were back at the car. Donna got in first and my aunt told me to be a gentleman and give her my towel to sit on. I did and was about to sit in the back seat when my aunt stopped me. "Don't you dare sit on those leather seats with your wet suit on, you'll have to take it off before you get in. I thought you'd know better". "I do know better I'm sorry. C'mon, don't make me take them off...I don't have anything else to wear" I said. "Well I can't leave you here and you ARE NOT ruining my leather seats, SO JUST DO IT!" Her voice was forceful and in that moment I didn't have time to think, what she said seemed to make sense. I was old enough to vote and was feeling intimidated by my aunt." Well?! What are you waiting for" Amy put in "I don't want to have to fight rush-hour traffic on the way home. DO IT".
So, right there in the parking lot I removed my wet bathing suit rendering me completely naked. She made me bend down to pick them up and hand them to her. I'm sure people heard her voice and were looking; I think Amy was too, but I dove for the safety of the car's back seat without taking the time to look. Donna was already seated, we look each other in the face for a split second before her eyes went extremely wide and her gaze traveled down, taking in every bit of my situation. I read her lips "Oh My God Oh My God Oh My God, he's fucking naked!" She smiled like someone who is in on a secret as she turned her head trying to conceal her excitement.
At home we never left our rooms or bathroom undressed. Just wasn't something we did. So this was something completely foreign to us. While I'm sure Donna had been with a guy before, I was her brother and wasn't doing this voluntarily. And there had been a girl I slept with that saw me naked, but Donna was my sister; she wasn't supposed to enjoy seeing me nude. Besides when I was with a girl she was naked too and rolling around in the sheets was different from being uncovered and exposed. I was so vulnerable.
Even with both hands covering my privates from open view, it was clear that I was nude and she could still see parts of me she shouldn't have been able to. My heart was pounding so hard I was sure it was visible. Donna tried to act natural, looking mostly out the window but I could tell that she was looking through the corner of her eye. My aunt and Amy got in the car; they didn't say a word as if the whole thing was normal and natural. It was at an hour and a half drive home and I knew it would feel so much longer being trapped helplessly naked with 3 females. I hoped there wouldn't be too much traffic.
I didn't dare move my hands, Donna was acting like she wasn't trying to steal a peak; but she was. I don't know if she really needed to see it all or if she just liked the fact that I was humiliated and that she was in a superior position. She emphasized this by saying that I could choose the music for the trip home. I didn't want a bit of attention drawn to me so I passed. I wondered what would have happened if I hadn't had a towel to give her. Of course my aunt would never have let this happen to her, just me.
Eventually I could tell she had dozed off. I was able to relax just a bit but I knew I still had 2 women in the front of the car. I don't know how it happened, but I fell asleep too. I would never have known that I had except for the sudden change in scenery. As I rubbed my eyes I saw Amy looking over the passenger seat and heard her say "hey look whose up!" I immediately remembered where I was, and knew that while asleep my hands fell to my sides leaving me unconscious and completely exposed, and for how long? I followed Donna's eyes downward and saw that worse that just being visible to them; I was as hard as could be. "and now he's awake too" my aunt added to Amy's observation, looking at me through the rear-view mirror.
They all laughed, Donna blushed a little and gently bit her bottom lip and hung her head to mask her chuckle. I covered myself as fast and as best I could but there was more to hide how and I couldn't cover it all right away. Besides, I knew that all three of them had enjoyed a very prolonged look at my dick and balls.
It was only a few more minutes to my aunt's house. When we got there, I waited for everyone else to get in the house. I grabbed my towel from my sister's seat and wrapped it around me and dashed for the house, up the stairs and to my bedroom. Once behind the closed door I reflected on what happened, I wasn't mad at all and while I wouldn't want to repeat the one-sided forced peep show, it did excite me just a bit.
I went into the bathroom which had a door right in my bedroom, and another on the other side that lead to my sister's room. I put the towel down and went back to my room to get some clothes together before I took a shower to get the remainder of the beach off me. When I went back into the bathroom my sister was standing there, facing me and wearing my towel. "What the hell?!" I said, putting my hands over my privates, "didn't you have enough of my towel today? Jokes over". She didn't move, on the floor beside her was her bathing suit. I swallowed hard and didn't say anything else, not sure what to do or say. I didn't really have time to, she started to talk, and I let her.
"Ummm, about what happened today" she started, "I know that must have been hard for you and I feel partially responsible. I had a shirt that I could have sat on." She spoke and I was speechless and about to get mad. She continued, "I had been listening but didn't know what was going on, and then I saw you in the car next to me... naked, I was shocked. I got a glimpse of your dick when you first got in. I know you're my brother and I shouldn't have liked it, but I did. So I didn't say anything about the shirt. I wanted you to be naked next to me."
She was standing on one side of the bathroom and I was on the other. My hands were at my sides, completely forgetting to cover myself. "I hope you can understand. I mean, what would you have done if it was me in the car with nothing on?" I stood there facing my little sister, my growing erection betraying my thoughts. I answered her question, "I would have done the same as you, and I would have wanted to see you naked". It would have been a very different answer just a short time ago but it was like I was noticing her for the first time.