Last night had been maybe the hottest and muggiest of a hot, muggy summer. I could’ve slept indoors, but the air conditioner keeps me awake and makes my sinuses hurt. So instead of tossing in a sweaty bed, I’d slept out on the second-floor deck. It wasn’t much cooler than inside, but at least there was a little natural air moving. That’s how I happened to be around when it started.

My folks had gone back east for a funeral, and Aunt Sally had gone with them. That left me and my sister Traci at home. Us, and Karen, who had been delegated to stay over with us.

Karen is Aunt Sally’s daughter. She is maybe the finest babe around, though my sister would have to come pretty close. They look more like sisters than cousins -- it must be the Shackelford genes -- but they don’t like each other very much.

It started years ago, when Karen cremated some of Traci’s Barbie dolls, and it’s just escalated by degrees since then. They’re always bitching and quarrelling. You wouldn’t think two such primo wenches could ever know how to be as bitchy and as catty as my big sister and my cousin act most of the time.

Anyway, Aunt Sally said Karen had to stay with us while she was back east -- I don’t think she trusted her to be at home alone -- and that really made Traci’s day.

Me, I was kinda happy, because I was hoping I might get at least a quick peek at Karen with her clothes off. She’s dynamite in a bikini, but ever since I started getting hair on my dick, I’ve been trying to find some way to cop a look at her goodies.

I’ve already seen my sister bare-assed, and it’s an eye-catching sight. Like I told you, Traci is a real babe. But Karen would be the hat trick as far as I was concerned.

They’d both gone out the night before, and neither of them had come in while I was awake. Bar-crawling and guy-chasing, no doubt. They’re both not quite twenty-one, but that’s what fake IDs were made for, right? Me, I’m eighteen, and I look a lot younger, so I couldn’t crash a bar even with a shitpot full of fake ID. And girls think I’m a wuss, though I’m not. I want to make that perfectly clear from the start. I just need to work out my technique.

Anyway, I was sacked out on the deck. A bird was chirping not far away, and I opened my eyes slowly. It was earlier than I usually get up, but nature doesn’t operate at my convenience. I sat up, yawning and greeting the new day, and wishing I had a shoe I could throw at that goddamn bird.

My mouth was still open when I heard the sound of my sister’s voice from down below. “Well, you bitch, it’s about time you were coming in!”

I slid off the chaise lounge and onto the floor, as quietly as I could, and I peeked through the slats.

Karen was standing in the backyard. She was a knockout in her black minidress. It was the same one she’d worn last night, when she and Traci went out, but it looked like it had been slept in. Even so, she was a knockout. Take my word for it. She was holding her high-heeled shoes in her hand, and she stood with a devil-may-care slouch, one hip cocked out.

“So what’s it to you?” Karen asked casually, tapping her shoes on one smooth thigh.

“You cunt,” my sister replied. “You went home with Tommy, didn’t you? And you fucked him, too, right?”

“Mmm,” Karen purred, “you’re a lot smarter than you used to be.”

I couldn’t see Traci. She was on the patio, just below the deck on which I was perched. But I could almost feel the rage that was steaming upward from her. Holy shit, I thought, what was going on?

“If you get any redder, you’ll explode,” Karen said. “But maybe that wouldn’t be so bad. What’s the matter, cousin? Were you just itching to get Tommy’s big dick into your hot little pussy? And it just spoiled your day when I got him before you did?”

“Whore,” my sister growled. Jesus, I knew that sound! And Karen had better watch her ass! Traci was nothing to fuck around with when she got pissed. She’d whacked me black and blue a couple of times, and I’m a guy!

But Karen didn’t stop. I could see the smirk on her face, the same one she always gets when she thinks she has everything under her thumb. She’s a primo babe, but to be honest, she can be a real bitch when she wants. And that was exactly what she wanted right now.

“Well,” she went on, “just to satisfy your pathetic curiosity, he wasn’t all that good. Maybe you’d have found it a real thrill, but I was a little bored. Of course, he did tell me that I was the greatest piece he’d ever plugged, so most likely I’ve spoiled him for other women. I doubt that he’d ever be satisfied, now, with anything you could give him...”

Traci shrieked, a sound that chilled my blood, and then she came running out from under the overhang of the deck and threw herself onto Karen.

My eyes bugged out. I’d never seen two girls fighting before, not even at school. And Traci wasn’t kidding as she attacked Karen.

She knocked Karen flat onto her ass, and she was screeching and hissing. No wonder they called it catfighting! There was a feline fury in my pissed-off sister that took my breath away.

Traci wore a robe, but it flopped open, completely exposing her, as she pinned Karen. They were in the grass, just below me, and I could see everything. I’d seen Traci naked before, but it hadn’t been quite as exciting as it was now. With her robe hanging open, she was atop our cousin, holding Karen’s wrists, their bodies rocking violently. Traci hissed and gurgled, gone far beyond words.