Chapter 1

I was fourteen when I first heard them.

Then, a couple of afternoons later, I watched them as they had sex. It was so hot.

Being a guy, fourteen, horny to the max, all the time, it was so sexy to watch. But, there was more to it. Watching them fuck and especially kiss and make out, that was disgusting.

They were my brother and sister. Gary was sixteen, Suzi was fifteen. It was so weird to watch them. Their sex turned me on, the fact they were brother and sister, my own brother and sister, turned me off. But I watched every time I could.

I watched them for years, four years to be exact.

Gary was now just about a month before he was due to enter the military, something that our mother wasn't too pleased with as that's how we lost our father. He was a colonel in Iraq and one of those who didn't come home.

He did leave us well-provided for with extra insurance that he wisely took out. After all, his father was also career-military and gave him good advice about providing for any eventuality.

So, we are a family of five; Mom, Gary, now twenty, Suzi, nineteen, me, Simon, eighteen, Anna, sixteen, and the baby of the family, Marnie, fourteen.

We were all living at home, but that was about to change. As I've said, Gary was going into the active military in about a month and Suzi was planning on moving in with a friend from when she was in high school who was having her current roommate move out. That was supposed to happen in about two weeks.

So, Suzi and Gary were trying to have as much sex as they could before he left for basic training.

That brings me to the day all this began. I was in the den with Anna, we were playing a video game, one where you raced cars in a chase, when I saw Gary go down the hall to Suzi's room. I was sure they would be at it again and wanted to watch. Mom was at work and I knew that she was going out after with some of her friends so the five of us kids were home alone.

So, I told Anna that I had to go pee and went down the hall and out the back door around to the window of Suzi's bedroom. I could usually see in under the blinds and was crouching down watching my older brother and sister kiss as they pulled at each other's clothes.

"Oh, you pervert," I heard whispered from behind me. I wheeled around and it was Anna, standing there, her hands on her hips.

I quickly moved away from the window not wanting to risk being found out.

"You pervert you, watching them fuck," she said.

"How do you know what they're doing?"

She laughed and said, "Oh, I've watched them too, lots of times."

Anna moved back up to the window, looked in and waved me forward, whispering, "They're fucking like mad, come look."

I got up next to her and peered in. Suzi was sitting on top of Gary going up and down on his dick as his hands squeezed her boobs. It was super-hot watching them and my hand automatically drifted down to rub the bulge in my pants.

We were both staring in at the scene in our sister's bedroom as Anna turned to me, looked down, and said, "Look at you, rubbing your dick like a horny pervert."

"Well, you watch them, too, you're just as perverted," I whispered back.

"But I don't stand there and rub myself. Well, I do but not when I'm with you."

We watched until they both got off then we went back inside and started back on the video game again, now smiling knowingly at each other.

After a few minutes, Suzi came in, dressed but looking rather disheveled, to tell us that she and Gary were going over to visit friends and wouldn't be back until late.

After they left, Anna said, "Can you believe how she was acting ... like everything was so cool, like nobody knew what they were doing, what they've been doing for years now, fucking like rabbits."

"I wonder what they'd think if they found out that we'd been watching them?" I asked.

"I bet they'd be worried that we might tell Mom."

Anna sat there next to me as we both moved our controllers racing throughout streets on the television as I looked over at her to realize that she may be my little sister but, at sixteen, well, she was cute and sexy. So, I thought I'd tell her.

"You know, Anna, you've really turned into a hot girl, a really sexy, hot girl."

She jabbed me with her elbow, saying, "What's this, now? You trying to get me to fuck you like Gary's doing to Suzi? You really are a pervert."

"Why do you say that?"

"You are a pervert if you'd want to fuck you're own sister, that's why."

Well, the truth is, I thought that myself ... at one time. But after watching them that day with Anna and seeing just how sexy my younger sister had become, especially wearing a top that kind of drooped open when she leaned forward playing the game. I really couldn't help but look down her top at her small bra with the nice pink boobs showing along the top.

"You're looking at my boobs, aren't you? For god's sake, you want me like Gary wants Suzi, don't you?" she said as she elbowed me again.

"Yeah, I think I do, Anna. You're really hot and we're here by ourselves, even Marnie's gone. Just you and me, why not?"

"Why not? Well, you're my brother for one thing. I've really never thought about you in that kind of way. Well, almost never."

"What do you mean, almost never?" I asked.

"Um, well, there was last summer on vacation when we were swimming. You had kind of a big package showing. I was impressed. And, well, watching our brother and sister doing it earlier, well, I did kind of have some thoughts."

"Oh, what kind of thoughts, little sister?"