Stacy heaved a sigh, pushed back from the dining room table, and stretched. Strewn around her laptop were assorted reference books, sticky notes, and printouts with colorful highlights. She'd spent the last several minutes repeatedly reading the same sentence, unable to make any sense of it. It was ten o'clock, and time to admit she wouldn't make any more useful progress on her senior project tonight.
Moving to the living room, she settled on the sofa, pulled up her favorite movie, and tried to switch off her brain. She'd seen it so many times she didn't need to pay attention. It was just a comforting distraction as she wrapped a warm blanket around her legs and fooled around on her phone. She was finally starting to relax when her stepbrother Hudson vaulted onto the other side of the sofa, nearly spilling his oversized bowl of cereal.
"Whatcha watching?" he asked through a mouthful of food.
"A rom-com," she answered curtly, annoyed by his intrusion.
"Cool. Mind if I sit here? Your stuff's all over the table."
"Suit yourself," she said, biting back a reply about how she didn't have anywhere else to work. She wasn't really mad at
him
. After all, it wasn't his fault that his dad married her mom last year. Or that when they moved in, she'd had to give up her bedroom for him. She grudgingly admitted it made sense for her and her sister Flora to share a room, since they spent alternate weeks at their dad's house. Even so, the loss of personal space was aggravating.
"What's this about, then?"
"Those two," she said, gesturing at the main characters, "hate each other, but they're pretending to be in love to make his ex jealous and stop her parents trying to set her up with someone."
"Oh yeah," he nodded, taking another bite. "Sounds like it's based on the Shakespeare play we just read in English class."
"I guess." Stacy rolled her eyes. Her biggest problem with Hudson was that he was boring. The most middle-of-the-road boy she'd ever met. Perfectly average in every way. His tastes were predictably mainstream. No hobbies to speak of. No girlfriend. He didn't drink or party. Even his friends were boring.
Thankfully, he stopped asking questions, so she was able to mostly ignore him. He finished his cereal, but seemed interested enough in the movie to stick around.
After a while, she found herself getting drowsy. She slouched lower until her head was resting on the back of the couch. The familiar movie lulled her overworked brain into a state of relaxation. She pulled the blanket higher as her eyes drifted shut.
When she opened them again, the movie had ended, and it was past midnight. She blinked slowly, trying to figure out what woke her up. The house was quiet, but she could hear something out of place. A quiet noise she didn't quite recognize. Blearily, she looked to her side. Hudson was still there, staring at his phone.
There was something different about his posture, though. He wasn't scrolling idly through social media or playing a game. Sitting almost unnaturally still, his attention was entirely focused on the screen. She couldn't make it out, but there was a lot of movement, and the sound was...
Oh! Holy shit. Was he really watching porn here in the living room? On the couch next to her?
Now fully awake, she felt a rush of conflicting emotions. Astonishment. Annoyance. Frustration. Embarrassment. Concern. But all of those were quickly drowned out by one overwhelming reaction.
Curiosity.
Without a doubt, this was the most interesting thing Hudson had ever done. Outrageous, sure, but she had so many questions! Why didn't he just go to his room? Did he watch porn out here all the time, or was this a spur of the moment thing? She supposed she should be upset, but he didn't seem to be paying any attention to her, and hadn't done anything overtly creepy. It was almost like he just got distracted and forgot she was there.
And what kind of porn was he watching? She strained her ears for any clues, but could only make out the vague sound of a woman performatively moaning. That ruled out gay porn, she supposed, a little disappointed.
As slowly as possible, she shifted in his direction, trying to catch a glimpse. Focused on the screen, he didn't notice her creeping closer, inch by inch, until at last, she could see.
The camera framed a young woman on her back, grabbing her knees. The man holding the camera was urgently fucking her. With each thrust, her tits bounced and she cried out. Suddenly, the man groaned and pulled out, spraying cum all over her body.
Hudson closed the video and scrolled through a list of others. She tried not to laugh when she saw he was browsing the stepsister category. It made sense, she supposed. Almost overnight, he'd gone from being an only child to living with two hot girls he wasn't related to. Who wouldn't be curious?
He picked a new video, and she couldn't help but notice the girl had glasses and dark hair like her. Of course, the previous girl was blonde with fake tits, so that might not mean anything. She watched, along with him, as the "step-siblings" wrestled over the TV remote until the guy's cock slipped implausibly out of his shorts and into her pussy. They pretended to be shocked for about three seconds, then proceeded to fuck.
The whole thing was predictable, except for the framing device that they were meant to be related. She knew it was fake, but even so, she was surprised to find herself getting into it. The hook was enough to keep the encounter excitingly scandalous. She imagined they were fucking like they were afraid of getting caught.
Hudson was enjoying it too, judging by the erection tenting his pants. She bit her lip as she watched him slowly rub himself. This was wrong. Sure, he'd crossed the line first by playing porn in front of her, but was she really going to let him keep going while she pretended to be asleep? What if he actually pulled it out? Some part of her wanted to let him, but she knew there was only one way to handle this.
"Oh my god," she blurted, leaning closer. "What are you doing?"
"What?" He startled, almost dropping his phone as he tried to close the video. "Nothing!"
"Don't lie," she laughed, snatching it from his hands and holding it out of reach. "You're watching porn!" On-screen, the girl who looked like her moaned as the guy rolled her onto her back and started thrusting between her thighs.
"Give it back!" He awkwardly tried to grab his phone without touching her, clearly hoping she wouldn't notice his hard-on.
"Let's see what else you've been watching," she grinned, holding him off with one hand and scrolling with the other. "Oh, look, stepsister videos!"
"No, that's not..." He risked getting a bit closer, pushing her arm out of the way and leaning over to reach for the phone. "Stop that!"
"Stepsister and brother have fun while parents aren't at home," she read, scanning the titles. "Fucking my stepsister after she teases me. Sharing a bed and cumming in stepsister. Ooh, here's a good one, stepsister fucks stepbrother to borrow his car!" She laughed, still swatting his hands away. "Is this what you like?"
He lunged forward, knocking them both over. She squealed as she fell onto her back, and he landed heavily on top. Triumphantly, he wrestled his phone from her grasp.
"Um, what's your plan, Hudson?" She grinned up at him.
"Huh?" It took him a moment to realize the position they'd landed in.
"Gonna act out your fantasy?" She squirmed under his weight, feeling his stiff cock pressing into her leggings.
"Shut up," he retorted, and tried to pull away, but she wrapped her legs around his to hold him in place.
"Good point, we'll have to be quiet," she teased, rolling her hips. "Wouldn't want anyone to hear you
fucking
your
stepsister
."
"Knock it off!" Blushing furiously, he broke free and stormed out of the room.
"Wait, come back, I want to borrow your car!" she called after him, laughing.
She was still laughing and heckling him the next morning as he made coffee before school.
"So, like, is it
only
stepsisters that do it for you, or do you watch other stuff, too? How do you feel about babysitters? Or nurses?"
He glowered, but did not reply as he shook the grounds into the compost.
"Why are you being so mean to him about this?" Flora asked as she walked into the kitchen.
"Are you kidding?" Stacy crowed. "This is the most interesting thing about him by far! A stepsister fetish when he has two stepsisters? Come on!"
"You told Flora?" he groaned.
"Oh,
immediately
," she laughed. "This was too juicy not to share."
"You're not gonna tell my dad, are you?" He looked horrified.
"Not after the way he overreacted to Flora that time," she frowned. "He'd probably blame me for this, and pack me off to a convent."
Flora nodded, Hudson breathed a sigh of relief, and Stacy pounced on him again.
"What about threesomes? Everyone likes threesomes, right? What do you prefer, two guys or two girls? Does everyone in the threesome need to be a step-sibling?"
He gritted his teeth and rinsed the coffee strainer in the sink.
"Give him a break," Flora scowled over a piece of toast. "Everyone watches porn. It's not a big deal."
"But I have so many questions! Like, what about boobs? Do you like big ones like Flora's, or little ones like mine?"
His only response was to grip the edge of the sink in frustration.
"You don't wanna answer in front of Flora, huh?" She grinned. "Smart. You can tell me later. No need to hurt her feelings. Let's talk pubes. Do you prefer shaved or..."
Hudson turned and doused her with cold water from the sink sprayer. She sputtered in shock and disbelief. Wiping the water from her eyes, she saw his expression change. The anger drained away as his eyes widened in surprise. Following his gaze downward, she realized the water had soaked her top, turning it nearly transparent. Clapping her hands over her chest, she ran from the room.
As she fled, she heard Flora say "Don't worry about it, she was being a total bitch."
Stacy spent the entire day thinking about how to get back at Hudson. That night, she waited until she heard him getting ready to take a shower. When he stepped out of his room with a towel draped over his shoulder, she followed him down the hall to the bathroom. Just before he could close the door, she blocked it and slipped in after him.
"What are you doing?" he asked, backing away as she closed the door behind her.
"We need to talk," she replied cryptically.
"So you followed me into the bathroom?"
"Privately."
"Whatever." He scowled and draped his towel over the shower rod. "You're just here to give me more shit."
"I'm not," she said quietly. "In fact, I want to apologize."
"You do?" he regarded her warily.
"Yeah, Flora was right. I shouldn't have teased you. I just thought it was funny! I'm sorry, I didn't realize how upset you were until you turned the sprayer on me."
"Right." He rubbed his neck awkwardly. "I'm sorry, too. I didn't mean to get your shirt wet like that."
"Alright." She leaned against the door, looking pointedly at him, and letting the moment stretch uncomfortably.
"And, um, I'm also sorry about watching porn on the couch by you."
"That was super weird, dude."
"I know, I'm sorry! I thought you were asleep. The girl in the movie was pretty hot, and when it ended I was a little turned on, and I kinda forgot you were there. I swear, I wasn't trying to be a creep or anything."
"I figured," she shrugged. "You've never done anything sketchy before. I guess that's why I was more curious than upset."
"So, is that all you wanted to talk about? Because I was gonna take a shower."
"No, um, there was something else." She fidgeted with her shirt. "In the kitchen, you were kinda staring at me..."
"I'm sorry! I just got surprised..."
"And also last night on the couch, when you were on top of me? I could feel you had a hard-on."
"I swear that was..."
"Do you have a crush on me?"
"What?"
"Well, you're into stepsister porn. You got hard watching a girl who looks like me. And then you were staring at my boobs. You can't blame me for wondering."
"No, no, no! Fuck no, I swear!"
She scowled at his overreaction.
"I didn't mean it that way," he grimaced. "Like, you're attractive and stuff. And yeah, I got turned on, but I promise, I'm not obsessed with you or anything."
"So, you
do