My parents owned a cabin in the Adirondacks Mountains in upstate New York and we would vacation there every year. "We" consisted of Mom, Dad, my older sister Susan and myself. The cabin was really beautiful, located deep in the woods on the shore of a small crystal clear lake.
When we were small we loved it. My sister and I couldn't wait for school to end so we could spend the entire summer up there. But as we got older, our attitudes changed. We became teenagers and it was more important, not to mention much cooler, to spend summers with our friends. Every year we'd bitch and moan, and wine and cry but every year Mom and Dad would drag our sorry butts kicking and screaming out of the house and into the car for the long drive upstate.
This one-year, when Sis was about 19 and I had just turned 18 we reached a compromise with our parents. We each were allowed to bring one friend with us for the summer. Susan brought her friend Denise and I was to bring my buddy Michael but the day before we were to leave, Michael broke his leg in a bicycle accident and couldn't go. You can imagine how bummed out I was. I was moping all through the drive up there and through the first week and my behavior was obnoxious. In other words, I was a real little snot to my sister, her girlfriend and my parents. I had no friend to hang out with; my sister was too busy with her girlfriend to pay any attention to me. Dad was back in the city during the week (he would only come up on weekends). Mom tried to hang with me, but what 18 year-old wants to hang with their mother? I was extremely bored. My school had given me a summer reading list and I had taken the half dozen or so assigned books with me. But, let me tell you, reading Dickens is no way to relieve summer boredom. Then one-day things got betterβmuch better.
I had taken "Tale of Two Cities" down to the lake to read, but Susan and Denise were down there splashing about in the water or yakking away about this or that so much that I couldn't concentrate. So I pick myself up and walked about fifty yards or so down the shoreline to a private little cove that was out of sight from where I left Susan and Denise. I parked my ass in the shade of a big rock that hid me from the lake. I opened my book and started to read but after a while I must have dozed off, because I was awakened by voices. I peeked over the rock and there on the shore were Susan and Denise. They were naked and they were kissing. Not just a peck on the cheek. No sir, this was open your mouth and stick a tongue down your throat type of kissing and they were really into it. Susan had her hands on Denise's ass and was holding her tight against herself and I could see Denise trying to reach for Susan's crotch.
Now Susan and I had seen each other naked before. It was no big deal, just an innocent thing, we lived in a small apartment in Manhattan, and so we were always in each other's way. Like, I would forget to lock the bathroom door and she would walk in on me taking a leak or she would leave her bedroom door ajar and I would peek in. So, like I said seeing Susan naked was no big thing, it never got me excited, but Denise was a whole other story. She was drop-dead gorgeous and I had the hots for her since the day I met her! Nice round ass, and big firm tits with long nipples that pointed straight up to heaven. I knew I shouldn't watch. I knew it was wrong. This was my sister, after all, and if she wanted to munch some carpet I should mind my own business and let her. But I didn't. I couldn't take my eyes off of Denise. I wanted her so bad, and I was so envious of Susan I would have traded by left nut to take her place. But that was impossible, so I did the next best thingβI jerked off while I watched my sister go down on her girlfriend.
Now, before you think I'm a perverted little turd, let me explain something. I wasn't getting off watching my sister; I was getting off watching Denise get off. Not that Susan isn't good looking; it's just that the thought of me doing anything sexual with her grosses me out completely.
This went on for a few days. Every afternoon, the girls would sneak away to the cove, and I would be there waiting for them in my hiding place. They would make out and do each other orally or sometimes, they use a two-headed dildo on each other (that was a sight to see), and I would whitewash the rock with my semen. I was rubbing my prick raw. I'd jerk off watching them in the afternoon, then again at night, lying in bed thinking about banging Denise.
One night Mom & Dad went into town, leaving the three of us alone at the cabin. There was a full moon and the three of us are sitting on the back porch, when Denise asked Sue if she wanted to take a moon light dip in the lake. By now I realize that this was their code word for "you want to have sex."
"No," says sis, "but why don't you go anyway and take my brother with you."
I was too stupid to see what was going on here and I made some lame excuse why I couldn't go because my bathing suit was still wet from this afternoon. Denise whispers in my ear, "Silly boy, you don't need a bathing suite to go skinny-dipping."
Ok, she has my attention now and, of course, I immediately pop a boner at the mere thought of seeing Denise naked.
I followed her down to the lake and once on the dock, Denise strips off her top and shorts and jumps bare ass naked into the lake. I was too shy to get naked in front of Denise, especially since I was sporting major wood so I just sat on the dock dangling my feet in the water. At first Denise chided me about my shyness, calling chicken as she splashed about in the lake, but then she got this serious look in her eye. She swam over to me, pulled herself out of the water and sat down next to me. All I could do was stair at her tits and try to hide the bulge in my pants.
She says to me, "Can I ask you something?"
"Sure" I stammered back.
"Do you enjoy watching me make love to your sister?" She asked.
BUSTEDβI was totally busted. I must of turned as white as a ghost. I tried to stammer out a denial, but before I could get a word out she said to me "Don't try to deny it, I saw you behind that rock watching us and pulling your pud."
"Does my sister know?," I asked.