Brain Stuff. You’re Hunched Over Your Desk, The Glow Of Your Laptop Screen Casting Shadows Across Your

Brain Stuff. You’re hunched over your desk, the glow of your laptop screen casting shadows across your cluttered apartment. Your fingers hover over the keyboard, ready to type the next paragraph of your dissertation — something about neural plasticity in machine learning models. It’s brilliant stuff, the kind of work that’s gotten you whispers of “genius” from your PhD advisors. You’re in the zone, your brain firing on all cylinders, when the front door clicks open.

“Hey, babe,” comes his voice, low and casual, like he doesn’t know what it does to you. Your boyfriend steps inside, shedding his jacket. He’s got that easy grin, the one that makes your stomach tighten. You glance up, meaning to say something sharp and witty, but he’s already peeling off his shirt, revealing the lean muscle underneath. Your mouth goes dry. The words you were about to type — something about synaptic pruning — slip away like sand through your fingers.

“Missed you today,” he says, crossing the room. He’s close now, close enough that you can smell the faint spice of his cologne. Your pulse kicks up, and you try to focus on the screen. You’re a goddamn scholar, you can handle this. But then he leans over your shoulder, his breath brushing your ear, and says, “What’s my smart girl working on?”

Your brain stutters. “Uh… it’s, um…” You squint at the screen, but the words lose their meaning. Neural what? Plasticity? Fuck, you know this. You wrote fifteen pages on it yesterday. His hand slides onto your shoulder, thumb brushing your neck, and your IQ takes a nosedive. “It’s… brain stuff,” you manage, voice small. You hate how stupid you sound, how you can feel your own brilliance leaking out of you as he closes the distance.

He chuckles, soft and loving, and that sound alone makes your thighs clench. “Brain stuff, huh? Tell me more.” His fingers dip lower, tracing the edge of your tank top, and you try — God, you try — to string a sentence together. “It’s about… how brains… change?” Your voice lilts up like a question, and you want to scream. You’re not some ditzy undergrad; you’re a fucking PhD candidate. But his hands are on your chest now, cupping you through your shirt, and your thoughts scatter like dropped marbles.

“C’mon, babe,” he teases, turning your chair to face him. “You’re usually so quick.” He’s smirking, and you hate how much you love it. You open your mouth to snap back, to prove you’ve still got it, but then he’s kissing you — hard, messy, all tongue and heat — and your mind goes blank. Not fuzzy, not slow, just empty. You kiss him back, hands fumbling to his waist, and all you can think is cock. One word, looping like a broken record.

He pulls you up, backing you toward the couch, and you trip over your own feet. Normally you’d curse yourself for being clumsy, but right now you just giggle — high pitched, brainless. “You’re so hot,” you blurt, and it’s the most coherent thing you’ve said in minutes. He grins, shoving his jeans down, and when you see him— hard, thick, right there — your knees buckle. You drop to the cushions, staring up at him, mouth slack. You should be analyzing data right now, not drooling like some horny idiot.

“Fuck, look at you,” he mutters, climbing over you. His hands yank your shorts off. You’re already so wet. You try to focus, one last chance to claw back a shred of intellect. “Wait, I — I need to finish—” you start, but then he’s pushing inside you, slow and deliberate, and the rest of the sentence evaporates. Your head lolls back, a moan spilling out instead. You feel him stretch you, fill you, and your brain shuts down completely. “Oh… oh God,” you whimper, legs wrapping around him on instinct.

He starts moving, thrusting deep, and you’re gone. No more dissertation, no more research — just his cock, slamming into you, turning you into a panting, writhing mess. “Tell me something smart,” he pants against your neck, mocking you now, and you want to, you need to, to prove you’re not this dumb slut he’s turning you into. “Th-the brain… it… f-fuck, it d—” You can’t finish. Every thrust scrambles your thoughts more, until you’re babbling nonsense, hips bucking to meet him.

You’re frustrated, somewhere deep down, because you know this isn’t you. You’ve presented at conferences, dismantled arguments from tenured professors, but right now you can’t even remember your own name. “Please,” you gasp, not sure what you’re begging for — him to stop, or keep going, or something else entirely. He grabs your hips, angles himself deeper, and you stop caring. “Sho… haaard…” you slur, drooling over the syllables, “sho… deeeep…”

He laughs, a low rumble. “That’s my girl. Just let go.” And you do, you can’t hold on anymore. He fucks you harder, faster, and you’re nothing but heat and need, whimpering every time he bottoms out. Your nails dig into his back, and you’re close — so close — then he groans, loud and guttural, and you feel his hot cum pour into every crevice. You climax alongside each other.

It’s instant. The second his cum hits you, it’s like a switch flips. Your vision clears, your breathing steadies, and your brain kicks back into gear. Synaptic pruning. Neural plasticity. Machine learning models. You blink up at him, still slick with sweat, and push him off with a shaky hand. “Rude,” you say, voice sharp again. He flops beside you, grinning, while you stagger to your desk, naked, his cum dripping down your thigh. You sit down, pull up your dissertation, and start typing like nothing happened — sentences crisp, ideas flowing.

“Welcome back, genius,” he calls, still sprawled on the couch, annoyingly smug. You don’t even look at him, but your lips twitch. Just ignore him, you’re back, and you’ve got work to finish. At least until he gets hard again.

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lost-traveller1

2 months ago

being spanked with the backside of your hairbrush .. it’s the closest thing to him as you whimper, face buried in the softness of your bedsheets, back arched and ass up.

the first spank comes and your mouth falls open — a moan, delighted and pained, escapes from in between your lips and you hear him breathlessly smile, thumb caressing your injured flesh.

“you’re so pretty like this, baby,” another spank, full of love, as you try to fuck yourself harder on his cock. “so pretty. such a good girl.”

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lost-traveller1

1 month ago

Not grammar or spell checked

Big brother that is going through a breakup. I was just being a good sister and helping him, walking into his room with snacks for the billionth time this week. Are you sure you are okay? Yeah, I'm fine...just a little pent up. I'm here for you big bro, I smile at him softly and he chuckles. Not pent up in any way you should be helping me. Grabs my cheek and pinches it what do you mean? Gives me a face, don't play dumb I know you're not that innocent. I think then my eyes widen, oh...like that. Yeah, like that he laughs and looks at the TV.

Been hard nonstop for the past week, nothings fucking working. He sighs finally showing some frustration, nothing? I say softly, big brother and I are open with each other but never in this detail. I can't help but blush as he tries to fix himself, obviously he's hard. Nothing. She cut me off a couple weeks before she actually broke up with me. He groans and looks over at me taking me in. Maybe...you can help me...he mumbles and bites his lip. What? I know I said you shouldn't help but it's only wrong if people find out, he pushes me into all the pillows I had brought onto his bed. Big bro, what are you doing? We can't do anything like that. I say nervously as I look at him with glossy eyes.

Easy, he crawls over me and settles himself between my legs. His bulge on my cunnie, our thin clothes barely doing anything. You can help big brother, right? Tilts his head and runs his hand up my stomach pushing my shirt up. You've done an amazing job already, never felt so loved before. Brings his hands to my tits and plays with them as I squirm and bite my lip. Just let me touch you and take control, if anyone walks in on us Big Bro will take all the blame. He says as he leans down and kisses me, this is so fucking wrong. He grunts but grinds his hips into mine making me whimper, but I need some kind of release. I nod my head so wrong but I make no move to push big bro away. This will be quick, okay? I nod my head, okay. You can look at the TV if you don't have to look at me.

I look over at the TV trying to be a good little sister but tense up when I feel his hands pulling down my shorts and panties. It's okay, he spreads my legs more and moans. Fuck, it has been forever since I've had a cunt...and your wet. He leans down give it a quick kiss making me squeak, I shake my head and just try to look at the TV. Won't have to do much, that makes this whole messed up thing quicker. Takes a quick lick, shocked I try to stop him but he pins my hand down. Just a taste, don't want anyone finding us like this. Pushes his fingers into me and I start to pant. Big bro, thought you said quick. I am being quick, Sits on his knees and pumps his fingers in and out of me. I'm just being a little nice to not hurt you, pulls his cock out pumping it. But I guess that doesn't matter to you, makes sure his cock is covered in my wetness.

Shouldn't you use...protection? I ask softly and leave evidence of this? How I'm going to fuck you? Fuck. No. He slowly starts to push in making me gasp, doesn't matter if I do this protected or raw it doesn't change the fact that I'm fucking my little sister. Can you stop saying that? I struggle to say as the stretch and length are so much. Why? It's the truth, he grunts at how tight I am. I know, but it's icky and it's so wrong I glance at him. We make eye contact and suddenly he slams into me, making my back arch and a loud squeal leave my lips. Quickly he covers my mouth but smirks, there's no way to sugar coat this. I'm a big brother fucking his little sister for pleasure, all because my stupid girlfriend broke up with me and I needed someone's cunt.

He starts to thrust in and out of me, I'm fucked up for thinking of this, for enjoying this, for not pretending this is someone else's cunt. I'm damn sick accepting it's yours, my loving baby sisters that will do anything for her big brother. He pushed my head to look up at the TV as he changes position so he can fuck me better. I let out a surprised moaned squeal as he starts to hit that spot. Don't look at me, he moans don't take me as your big brother. Don't get ruined by the thought like I am, little sis. His tone soft like he hurts but his thrusts rough with the need. I try my best to watch whatever is on the screen as my eyes tear up. Big bro, it's too much I bite my lip and push my head into the pillows. I've never taken this much or anything like this! I admit as a moan escapes my lips.

Fuck, don't say that. He tears up, his emotions a mess proud that it's him but also disgusted. Shit! Slams into me and pushes my head into the pillows as I reluctantly cum. He keeps fucking into me with a toxically yummy pace as it becomes too much quickly. Your shaking, this should teach you not to say yes to big bro for everything. He sniffles as he moans, I tried to stop myself, I knew you'd say yes to me when you should've said no. Now I'm balls deep in my little sister's cunt and no one can do anything about it. His grip on me gets tighter, I shouldn't want to creampie this pussy but I can't help it. I want to...need to, I try and stop him. Hitting him, no! Not inside please no! Big bro we can't! My cries are muffled quick, I said this would be quick, little sis. Moans loudly as he cum in me, holding me in place.

I shake and sob into the pillows, just like big bro I hate that I enjoyed it. I feel him pull me from the mess of sheets, it's okay. Pets my hair, we won't tell anyone. Not a single damn soul needs to know what just happened here. Pulls out of my used cunnie and watches as his cum drips out. Y-you came inside, I whimper. I'll get you whatever you need, we shouldn't worry. Softly kisses me, don't worry your pretty little brain about that. Once you leave my room it's just Big Brother and Little Sister. We never did this. This never happened.

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lost-traveller1

3 months ago

Big bros first time inside lil sis