Not All Stepsisters Are Evil
Copyright© 2026 by TheDarkKnight
Chapter 4: The Sleepover
Coming of Age Sex Story: Chapter 4: The Sleepover - When I was fifteen, my father remarried after being a widower for several years. I suddenly found myself with two stepsisters, vivacious twins a year younger than I was, full of energy and curiosity. It took me a while to go from being an only child with one parent to being part of a busy family, but once I adjusted, I found that having stepsisters wasn’t a bad thing at all. (Note: story codes will be added as the story continues)
Caution: This Coming of Age Sex Story contains strong sexual content, including mt/ft Teenagers Consensual Heterosexual Fiction Sister First Masturbation Oral Sex Small Breasts
In those pre-cellphone days, it was sometimes difficult to have a private phone conversation, especially in a full house like ours. There was one landline phone on the breakfast bar between the kitchen and living room, which wasn’t good for any conversations that you didn’t want to share with other family members. With three teenagers in the family, Trevor and Marge came up with a better solution. They had a second phone line installed, with phone jacks in each of our bedrooms, but only one phone for us to share. If I wanted to call Elsa, I had to find our shared phone, plug it into the jack in my room. I could talk to Elsa for as long as I wanted, or until Katie or Kiley wanted to use it. It was during one of those conversations that I asked her where she went to school, because I knew she didn’t go to the same school my sisters did.
“I go to St. Paul’s,” she told me.
“You’re Catholic? I asked. I was good at asking stupid questions in those days.
“You didn’t know that?”
“It never came up,” I told her.
I mentioned that to Katie later that night, and something about my reaction surprised her. “Geez, Ray, you got somethin’ against Catholics?”
“Nothing at all,” I told her, “but...”
“But what?” she asked. “Spit it out. What’s wrong with Catholics?”
“Nothing,” I repeated, “it’s just that some people say...”
“Some people, you mean, your friends? What do they say?”
“You know, that Catholic girls sometimes don’t wear panties under their uniform skirts so if they misbehave and a nun tries to spank them, she’ll get a surprise.”
“Geez, never underestimate the dirty minds of teenage girls,” Katie said. “What else have you heard?”
“They can do just about anything as long as they go to confession and say some Hail Marys or whatever.”
Katie grinned at me. “Don’t let Elsa know how ignorant you are about Catholic girls. You already know she’s kinda wild, but I really don’t think it has anything to do with her religion or bein’ able to confess her sins. She just really likes you. I’m glad we’re not Catholic, though. Think about how embarrassing it would be to have to tell a priest about all the stuff that’s been goin’ on between us.”
“I wonder if priests get together and talk about some of the strangest stuff they’ve heard in that little booth?” I asked.
“I think that’s against the rules or whatever. I don’t know that much about religious stuff either. So, you lookin’ forward to gettin’ to spend personal time with your sweetie, maybe give her something to take to confession?”
“We’ll see what happens,” I sigh, trying not to get my hopes up.
“You ever been to a sleepover before?” Katie asked.
‘Nope. Boys usually stop spending the night with their friends once they hit puberty.”
“You don’t sit around jackin’ each other off?” Katie laughed,
That was too on point. It only happened once, and we were just twelve. I wanted to tell her, but she had already gone into her room and closed the door.
The Stars game that Saturday was at 3:00, a change from the usual morning start. It was the last game of their regular season, and if they won, they would be the league champions. As if the munchkins weren’t keyed up enough about that, the team had a travel tournament coming up over Thanksgiving weekend, a first for them, which only added to their excitement as we drove to the game.
—-----.
That was the day I met Elsa’s parents. I’d seen them around, but we hadn’t been introduced. While we were waiting for the game to start, Marge took care of that. I tried to be mature and polite, but it made me nervous to look her father in the eye, wondering whether he had any idea what I thought of his daughter or had heard about our antics behind the Walmart truck. I very much hoped he wasn’t a mind reader.
If Elsa looked like a Viking princess, her dad looked like a modern-day Viking warrior. He had a big, bushy mustache and longer hair than most middle-aged men did in those days. He towered over me as we shook hands. Elsa was already on the field warming up while I was going through that ordeal, and when she saw what was happening, she gave me a quick grin. I think she was enjoying my discomfort.
The Shooting Stars usually played their games at a big soccer complex, with eight well-maintained fields, restrooms, and a concession stand, but that day the game was out in the boondocks. There was just one, worn-out pitch, and a couple of porta-potties. The girls had been lucky enough to have good weather for all their previous games, at least the ones I went to, but this day wasn’t so nice. A cold front was moving in, and even though in Florida, ‘cold’ is a relative term, it usually means rain. That’s what happened that day. It wasn’t a downpour, but the on-again and off-again showers meant that by the time their game started, the field was torn up and muddy.
I knew boys might enjoy playing in those conditions, but I expected the girls to complain and be grouchy. I was wrong. I still had a lot to learn about teenage girls. It seemed that the muddier and dirtier they got, the more they enjoyed it. Winning the game and the championship helped with that.
The plan was for Elsa to come home with us since she would be spending the night, but first, there was some cleaning up to do. Being an aggressive keeper, no matter the conditions, she had mud on her uniform, her legs, and even some in her hair. Her parents had been wise enough to bring her a change of clothes. The problem was a lack of any place where she could clean up and change.
Marge had brought some old towels (I guess it helps to listen to the weather forecast occasionally). She found a water fountain and wet one of them, and Elsa got most of the dirt off. My resourceful stepmother spread the rest of them out on the seats in her Explorer. She had brought some blankets too, and Elsa used one of them to sort of hide behind while she changed in the back of the van. The twins made sure that I didn’t try to peek, which was a little insulting. Did they really think I was such a creep that I’d want to watch her change? Okay, maybe they were right, given everything that had happened in the last few months, but still, their lack of trust hurt a bit.
After that, we piled into Marge’s SUV for the ride home. Marge was driving, and my dad was riding shotgun, a position he usually hated, but it was Marge’s car. The K’s had the middle row of seats, and Elsa and I were in the back. Her hair was a mess, with bits of dirt still stuck in it, and she had a speck of mud on her cheek that she had missed, but sitting next to her still made my heart beat a little faster.
It was a longer drive home than usual, close to an hour. For the first fifteen minutes or so, the girls were still psyched up about the game, talking and laughing like kids, which I guess they still were. After that, the twins settled down and made themselves comfortable under some of the blankets. Now that the cold front had moved through, the rain had stopped, but it was getting a little chilly. Elsa used one of the blankets in the back of the van to cover us. She leaned against my shoulder and snuggled up against me, and I loved it. It was like we were a real couple.
A few minutes later, I felt her hand moving under the blanket and over my lap. Elsa found the zipper of my jeans and soon had her fingers inside my boxers. When she finally managed to get a grip on my dick, a feeling went through me, like the static shock you might get from a doorknob on a chilly morning. I was only half-erect, but as her fingers began to play with me, that was quickly rectified. I couldn’t see her face, since she was lying on my shoulder, but I was sure she was smiling.
I wanted to return the favor, but because of how she was lying on me, I couldn’t get my hand in the right place. She was wearing sweatpants, so it would have been difficult to get my hand where I wanted it anyway. I did manage to get a brief, outside-of-the-shirt boob squeeze. Elsa didn’t respond, but her fingers got even busier, and she brought me to a fully erect state under the blanket. I was beginning to wonder what would happen if she made me cum, and how we would handle the mess. Fortunately, we didn’t have to worry about that, because before it could happen, Marge had to make a sudden stop to avoid what, according to my dad, was a “dumbass motherfucking idiot.” That caused everyone to wake up.
Elsa pulled her hand away and sat up, leaving me with the challenge of putting my dick away and closing my fly under the blanket. Katie turned around to say something to Elsa and saw my hands moving in my lap. She must have figured out what was going on, because she grinned at Elsa and asked, “You guys okay? Hope you had your seatbelts on.”
All I could do was return her smile and try to hide my disappointment by reminding myself that Elsa was going to be spending the night at our house, just a few feet away from my room and my bed.
When we got home, I helped my dad crank up the grill and cook some steaks. Marge and the twins made potato salad and corn on the cob, while Elsa took a shower to get the last of the mud out of her hair.
After we all helped clean up and were just getting into some ice cream, Petra’s parents dropped her off. She was tall, even taller than Elsa, but with none of Elsa’s enticing curves. She was even skinnier than the K’s. Her body, at least from what I could see under the oversized sweatshirt she was wearing, was featureless; no boobs, and at best, a tiny ass. She had jet-black hair that fell to her shoulders, and she wore it parted in the middle. She reminded me a bit of Cher.
When Kiley introduced her, the first thing I noticed was her piercing grey eyes, a feature I had never seen before. She had a deep, resonant voice, which again made me think of Cher. I wanted to get to know her better, but Kiley and Katie kept her busy most of the night. In fact, I didn’t get to see much of Elsa either at first. I felt like Rudolph the Reindeer, and the girls weren’t letting me play in any reindeer games. I took the hint; this was a girls’ night. I retreated to my room, but optimistically kept my door open.
I heard the girls making popcorn, and this time they included me. Kiley brought me a bowlful and a glass of soda, then they went to Katie’s room and closed the door again. They stayed there, giggling and laughing for the next couple of hours, while I tried to be a grown-up and not wallow in my disappointment too much.
Around ten o’clock, I heard a knock on my door, and Katie stuck her head in. “Can I take a shower here?” she asked. “Kiley and Petra are using the other two bathrooms. We’ve decided to get ready for bed, then watch some TV.”
I started to say, “Sure, as long as I get to help,” but decided to be nice and told her to go ahead. When she came out twenty minutes or so later (why does it take so long for girls to take showers?), she was wearing pajamas and a robe. It wasn’t really that cold, but she looked like she was ready for winter. As it turned out, all the girls wore pajamas that night, which they insisted on calling ‘jammies’, shattering my dream of having a bevy of young girls prancing around in skimpy nighties.
I kept reminding myself that this was the K’s sleepover and had nothing to do with me, but I still felt left out. I played some video games, read for a while, then, when I was about to give up and try to go to sleep, my door opened again. It was Katie and Elsa. Even though they hadn’t knocked, I didn’t care. Just the idea of my Viking princess finally in my room was all I needed to cheer me up. Katie had ditched her robe, and now I could see that she was wearing p.j.s with Winnie the Pooh characters on them. They were a little tight, which made me wonder how old she had been when she got them. I guessed that when the rest of the girls decided to wear pajamas, Katie was left with only the small, childish ones to put on. Elsa’s nightwear was purple and satiny. It displayed her curves nicely and made her look a lot more grown-up. For a moment, I wished I were a wizard, so I could make Katie disappear, but then I realized she was the reason Elsa was in our house that night.
“You’re not asleep, are you?” Katie asked.
“Nope. Come on in.” Katie plopped down on my bed, forcing me to scoot over. Elsa was a little more polite, taking a moment to look around my room before she sat next to Katie. “Where are the other girls?” I asked, ”There’s still room here for two more on my bed.”
“Yeah, you’d like that, wouldn’t you, your own personal harem,” Katie laughed. She looked at Elsa, and they both grinned, like they had a secret that they weren’t going to let me in on, then she said, “They’ve already gone to bed.”
“So early?” I asked. “I thought you girls might be up all night.”
They exchanged another look, then Elsa said, “Oh, we don’t think they’re sleeping. Go on, Katie, you might as well tell him.” Ah, there was a secret, and I was about to be let in on it.
“I guess you didn’t pick up on the fact that Petra is gay,” Katie explained.
“I’ve barely met her,” I said, “so ... Kiley...?”
She laughed. “Nah, my sister isn’t gay, she just likes what Petra does to her.”
“Oh,” was the only comment I could come up with. These days, finding out someone you know is gay is no big deal, but forty-some years ago, it could still come as a surprise. I immediately started imagining what was going on in Kiley’s room. I didn’t get too far down that rabbit hole before Katie brought me back to reality. “So, we thought we’d come in and keep you company. Hey, do you still have those magazines, you know, the dirty ones? Elsa wants to see ‘em.”
“Sure,” I told her. I got up and walked over to my closet. I had changed my hiding spot to make it more secure, so it took me a little longer to dig them out, then I headed back to my bed. The girls were lying on their stomachs, waiting for me, which reminded me of the day I came home to find the twins had been lying on my bed, going through my stuff. In a way, this felt the same, because as embarrassed as I was that day, now I was worried about Elsa seeing my porn collection. I was afraid it might change how she felt about me. I should have known better.
Katie grabbed the magazines and put them on the bed in front of her and Elsa. Before she even opened the first one, I heard Elsa exclaim, “Damn, this is the real stuff. Ray, I didn’t know you were into this.”
“Oh, there’s a lot about my new brother you don’t know,” Katie told her.
“Well, I know he has a nice dick,” Elsa giggled. “I found that out today.”
“Yeah, I knew you guys were up to somethin’ in the backseat.”
I was glad Katie didn’t say anything about how much experience she and her sister had with my manhood. For some reason, I didn’t think that was good information to share with my sort-of girlfriend, but when I saw them lying on my bed, about to start looking at my porn collection, I reminded myself that this might not be a normal relationship anyway.
“Come on in, Ray,” Katie said as she slid to one side, making room for me in the middle. It was a teenage boy’s dream, lying on my stomach between my naughty stepsister and the girl whom I was fascinated with, our hips pressed together, about to look at porn together.