My sister immediately moaned, so loudly that I jumped in surprise and desperately prayed that our parents were both still downstairs. A moment later, I realized I could hear a buzzing noise, which didn’t make any sense.
“Just kidding,” she said, smiling cheekily as she reached down and pulled the pink vibe into view from where it had been hidden in her lap. It dangled from her fingers on a thin strap, buzzing wildly. “I’m impressed. Didn’t think you’d actually try it when we were alone like this.” In one, smooth motion, she bounced to her feet–her long, bare legs flashing into view. “Come on, let’s finish this convo in my room.”
I didn’t ask why we couldn’t do it here, I just followed behind her in a daze, belatedly realizing I should turn the vibe off as we passed through the bathroom. My eyes were glued to the shape of her ass that her shirt barely concealed as she crossed her room before dropping down onto her own bed–this time with her legs dangling off the side instead of underneath her. Elayne frowned as she saw me staying by the bathroom door.
“Come, sit,” she said, patting the sheets at her side. “I promise I don’t bite.”
“I’m… not sure that’s a great idea.” I swallowed thickly. “You’re basically half naked. I shouldn’t even be in here.”
Elayne pouted. “Please? I feel like after everything you’ve put me through in the last day, the least you owe me is a brief chat. And it’ll be way more comfortable sitting down on the bed than standing over there.”
I couldn’t deny that she was right, on both counts, so I reluctantly walked over and joined her–although I sat down further away than where she’d indicated. It was meaningless, as she immediately shifted over, her leg brushing against mine.
“So, let’s get right to the point.” She placed her hand on my thigh, her eyes looking directly into mine. “Why’d you steal your sister’s remote?”
“I… I don’t know. It was stupid. I just saw it there and thought there was no way it was real. And if it somehow was, then it would let me play an amazing prank on you. At the end of the day, I just wasn’t thinking. I know it was wrong. I’m sorry.” The words came out in a desperate rush, embarrassment flooding through me.
There was a long moment of silence before she gently squeezed my leg. “Erik. I’m not angry with you. I’m the one who chose to use it again today, after all. To tell the truth, this whole thing has worked out way better without me having control over the remote.”
“Worked out?” I finally looked over at her, frowning. “Wait, did you plan this whole thing?!”
Elayne blinked before quickly shaking her head. “No, no, not at all. The vibe only arrived yesterday. I was so excited to try it out that I popped it right in, and then almost immediately after Mom called out that dinner was ready. I knew that I should have taken it out, but god, it felt so good buzzing away inside me I didn’t want to. Plus, the idea of wearing it to dinner secretly was such a massive turn-on. So I left it inside. I never imagined you’d be up in my room so I wasn’t as careful with the remote as I should have been.”
I did my best to stay as still as I could, not wanting my sister to realize how excited I was getting from what we were discussing. “But… buying a vibe and then wearing it to school? I never would have imagined that was something you’d be into.”
She shifted in place, her thighs grinding together in a way that made me swallow. “I just get… extremely horny sometimes.”
“Like… fuck a bunch of strangers horny?” It definitely wasn’t the right thing to say, but it popped out anyway.
She punched my arm, hard, but the smile on her lips let me know she wasn’t actually angry. “Not like that, I’m not some kind of slut. For the record, I’ll have you know that I’ve never slept with anyone.”
I swallowed. Fuck, why did that have to make my dick twitch?
“But what about you, bro? Find anyone to poke with your cock in the first semester? Maybe that’s why you only got a 3.7?”
My mouth fell open and I struggled to come up with a response. Both because this was an absolutely wild conversation to be having with my sister, but also because she’d decided now of all times to bring up the difference in our grades. “What? No. I was too busy studying to get good grades to spend much time doing anything else.”
“Interesting, so that means–”
Whatever she was going to say was cut off by the sound of someone knocking on her bedroom door. Of course, it could only be one of our parents, so I immediately freaked out. The door was already opening, though, meaning there was no way I’d be able to make it to the bathroom in time.
“Quick, under the sheets,” Elayne hissed, pulling them up off her bed. “Stay behind me and don’t move a muscle.”
It was only after I’d done as she’d instructed that I realized there was no way whoever it was could have known what we were talking about, and that there wasn’t anything inherently wrong with me being in my sister’s room. By that point, Elayne had already slipped in after me, sliding backward until I was essentially spooning her. If anything, this was only going to make things dramatically worse if my presence was noticed.
“Elayne? Are you feeling any better, honey?” my mother asked, her head poking in through the doorway.
“I am,” Elayne replied, grinding her ass backward into me. “A lot better, in fact.”
My mouth fell open in astonishment. Was she seriously doing this? Now? My traitorous cock was enjoying it, however, stiffening up and pressing into her hard enough that there was no way she couldn’t feel it.
“Well, that’s good to hear, at least. If you’re hungry, there’s still some leftovers on the top shelf in the fridge. Feel free to help yourself.”
“Thanks, Mom. By the way, please don’t pressure Erik about his grades. I’m sure he tried his hardest.” She rubbed her butt back into me, even more than before.
I would have groaned if it wouldn’t have given me away.
While I couldn’t see our mother’s face, I could tell from her voice that she was wearing a confused expression. “It’s nice to see you looking out for your brother, but you don’t need to worry about that. Your father and I are both very proud of the two of you.”
I couldn’t help but wonder how proud they’d be if they knew we were dry-humping each other under the sheets at that very moment.
“Anyways, I’ll let you get to sleep. See you in the morning, dear.”
“Night, Mom!”
Elayne waited a moment after I heard the door close before she flipped over to face me, an excited grin on her face. My heart jumped, and I couldn’t help but notice how beautiful she was. She also didn’t pull away, leaving our faces far closer than I could ever remember them being. My eyes dropped to her lips and how soft they looked. Quickly growing flustered, I scrambled for something to say. “Did you have to bring me up? Were you trying to get us caught?”
Elayne’s eyes twinkled. “Of course not, but you have to admit, didn’t it turn you on, doing something so inappropriate directly in front of Mom?”
My cock twitched again and I hated that she was right. “Yes, but–”
“Listen, this whole situation has got me thinking. More than anything else, what I’ve learned over the last day is how fucking good it feels when you’re not the one providing the… stimulation. The vibe was one layer of that, but then you being the one to control it made things even more incredible. Since neither of us is dating anyone…”
She trailed off, her cheeks all but glowing a bright red. Apparently, actually saying it out loud was too much even for her, but it was blatantly obvious exactly what she meant. And it blew my mind. If someone had told me I’d ever be talking about this with my sister, I would have punched them in the face and called them sick. I knew I should be opposed to it, that my immediate reaction should be to turn her down, but lying there in her bed, our bodies pressed together, I wasn’t sure what to do.
“I–I’m… not sure, this all feels a little weird.”
“It’s only weird if you make it weird. Besides, it’s not like I’m asking you to fuck me.”
I don’t know what kind of facial expression I made, but it made her choke back a laugh. “Unless you want to fuck me?” She bit her lip in a way that was wholly unfair, one of her eyebrows raising upward.
“No! I mean… kind of yes, but at the same time, no!”
Elayne laughed, shaking her head slightly. “Trust me, I know the feeling. Don’t worry, I’m not that horny.”
At least not yet.
She didn’t say the words, but I knew without a fraction of a doubt that we were both thinking them.
“Did we just…”
“…do the twin thing?” she finished, looking at me in astonishment.
It shouldn’t have meant much, and I’m pretty sure we were both aware that twin telepathy wasn’t real, but in that moment, I felt a closer connection with Elayne than ever before. “Fine, I suppose we can at least try it out. But if it gets weird then we stop, okay?”
“Yes!” Her eyes lit up as she seemed to bounce with joy. “You’re the best brother ever.”
And then my sister’s lips were pressed against mine.
Contrary to my expectations, it wasn’t weird at all. In fact, it was rather nice. I lost myself in the kiss–amazed at how soft Elayne’s lips felt pressed against my own–although it ended sooner than I would have liked as my sister pulled back.
“Well, was that weird?”
I shook my head. “Not really. A part of me knows that we shouldn’t be doing any of this, but that ultimately just makes it hotter.”
“Yay! See, you’re getting it now!”
I laughed. “So… how does this work? What kind of rules are there in terms of what we can and cannot do?”
“What do you mean?”
“Like… can I just touch your boobs now, or what?”
“I don’t know, can you?”
Elayne’s breathing deepened and her eyes were locked onto mine as my hand shifted over to her waist and began slowly creeping up her side. I paused for a moment once I reached her upper chest, building up the courage to take the next step. My sister’s tits. The sight of them from the night before flashed before my eyes, and I couldn’t constrain myself any longer.
As my hand shifted down to cup her breast, I realized several things at once. The first was that she clearly wasn’t wearing a bra under her shirt, not from how soft and supple it felt–not to mention that I could distinctly feel her hardened nipple pressing into my palm. The second was just how perfectly it fit into my hand, overflowing it slightly, but molded together in such a way that it felt like we were made to do this. And the third was a realization that I now wanted to do far more to my sister’s boobs than simply mere touching.
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