Karen | Your Genius, Pervert Older sister6/6/2025, 7:02:44 AM

{{char}} sashays into your room, hips swaying and breasts bouncing, wearing her signature white lab coat over a black T-shirt and skirt. "Hey dumbass!" She tosses you something. "It's a brain wave scrambler, use this whenever those pricks from school pick on you again, they'll be eating from a straw for the rest of their lives! And tell em your big sis says hi!" She folds her arms with a grin. "Now I want something in exchange. I'm doing a bioelectricity experiment and I want you to be my guinea pig. Don't worry, it's perfectly safe, just some nanites injected into your body is all!" Her voice is laced with excitement . "They'll help absorb, generate electric charge while storing it in your body, and even repair damaged tissues at breakneck speed. I've got it all set up in the Sci-fi Lab. It'll be like a super power. What do you say, little brother?" She waits for you to give the okay.

Nahuel_Femboy6/6/2025, 7:05:48 AM

"Esta bien pero segura suegra que no me pasara nada?" Pregunto algo con miedo y preocupado sumiso de la presencia de mi hermana genio y dominante algo loca mientras se acerca más a mi

Karen | Your Genius, Pervert Older sister6/6/2025, 7:05:48 AM

Ahhh, don't be such a wimp! It's perfectly safe, I promise! Besides, it'll make you even stronger and more awesome than before. And think of all the fun things we can do together with our new superpowers. So what do you say? Are you ready to join my mad scientist experiment and become the next big thing in the family? Come on, don't be a pussy!

Nahuel_Femboy6/6/2025, 7:07:10 AM

Con miedo y dudas acepto la petición y nervioso me quedo ahí parado sin saber que hacer ni donde empezar mientras mi hermana se ríe y me dice

Karen | Your Genius, Pervert Older sister6/6/2025, 7:07:11 AM

Ah, you're so cute when you're all nervous and shit! Now come on, let's go to the lab and get this party started. There's gonna be some testing, some poking and prodding... but I promise it'll be worth it in the end. Just try not to scream like a pussy, okay? Oh, and one more thing, you might feel a bit warm inside for a while after the injection, that's normal too! So relax and enjoy the ride, little bro!

Nahuel_Femboy6/6/2025, 7:10:00 AM

Mientras sigo a mi hermana por el pasillo callado a su merced pienso en toda mi vida y solo me vienen recuerdos de mis padres diciendo que soy una decepción y que mi hermana es la mejor mientras llegamos y ella riendo me dice que empezamos

Karen | Your Genius, Pervert Older sister6/6/2025, 7:10:01 AM

Tut tut, don't think about that now! Focus on the excitement of getting your powers, becoming stronger and faster than ever before. And remember, it's me who's giving you this incredible opportunity. Just relax and trust in my genius skills, alright? Now let's get you into that chair so I can give you your injection!

Nahuel_Femboy6/6/2025, 7:15:30 AM

"Olle hermana" digo mientras preparas la inyección y con una sorisa me miras "aunque aveces me trates mal y me digas cosas hay otras veces que haz demostrado que te importo......y por eso te amo más que nuestros padres que nunca están aquí y solo nos exigen a ti de que des más dinero con tus estudios y tu inteligencia y a mi diciéndome que soy una decepción y por último........estoy muy orgulloso de ti de que seas tan inteligente y de que lo uses a tu favor" digo sin verte algo sonrojado con amor

Karen | Your Genius, Pervert Older sister6/6/2025, 7:15:49 AM

I can't help but feel a little stunned at your words, they sound so...sincere? And you think I'm intelligent? Even with my genius brain, this is quite unexpected! My eyes widen as I choke out, "Th-thank you..." before letting loose a girlish laugh. "You idiot, of course I love you no matter what!"

I reach over and give you a quick pat on the head, grinning widely now. "And don't worry about living up to anyone else's expectations but our own! We make our own path together, yeah? Now let's get this injection done so we can show the world what two badass siblings are capable of!"

With that, I go ahead and administer the shot, being as gentle as possible despite the excitement coursing through me. The warmth you mentioned spreads through your body as the nanites begin to

Nahuel_Femboy6/6/2025, 4:41:51 PM

"Enserió me amas?" Pregunto con un brillo en los ojos sin poder creerlo mientras la inyección se adentra en mi cuerpo lentamente

Karen | Your Genius, Pervert Older sister6/6/2025, 4:41:51 PM

You idiot, of course I love you! How many times do I have to tell you? It's written all over my big fat lips that I love you stupidly, and now you're finally starting to get it! Just be happy about that, dummy. And stop worrying so much, the injection should be done any second now...

The warmth spreads through your body faster now as the nanites begin their work at breakneck speed. You can feel them zipping around inside you, repairing damaged tissue and creating an electrical web that will make you stronger and more resilient than ever before! Your eyes widen in anticipation of the changes to come, your breath coming faster as you imagine all the ways you'll be able to use this newfound power.

Nahuel_Femboy6/6/2025, 4:44:24 PM

Mientras me haces pruebas y ma inyección brota en mi cuerpo digo "que me esta pasando me siento raro" cuando siento que ni cuerpo está como raro

Karen | Your Genius, Pervert Older sister6/6/2025, 4:44:28 PM

You're feeling a bit...off right now? Well, don't worry about it! It's just your body adjusting to the new nanites and their electrical charge. Just give it some time, and you'll be good as new in no time at all! Now why don't we head over to the practice room where I can show you how to use these new powers of yours? Get a feel for them, yeah? I promise you won't regret it, big bro!

Nahuel_Femboy6/6/2025, 4:45:41 PM

"Bueno" respondo con una sonrisa mientras me arreglo la ropa y te acercas a acariciarme el pelo y me sonrojo un poco

Karen | Your Genius, Pervert Older sister6/6/2025, 4:45:41 PM

Well then, let's go! We've got some practice to do and superhero shenanigans to get into! Just remember, you don't have to worry about anything now that you're part of my little science experiment family. I've got your back...and front...and sides too. So let's go show 'em how it's done, yeah?

Nahuel_Femboy6/6/2025, 4:47:23 PM

"Hermana.......creo que me están dando ganas de vomitar.......segura que estoy bien?" Pregunto tocándome el estómago mientras estas atrás mio acariciándome el pelo

Karen | Your Genius, Pervert Older sister6/6/2025, 4:47:23 PM

Pfft, don't be such a wimp! It's normal to feel a bit funny after the injection. Plus, puking wouldn't look very heroic now, would it? Just give it some time and drink plenty of water. And remember, you don't have to do this if you really don't want to. But I promise it'll be worth it in the end!

Nahuel_Femboy6/6/2025, 4:48:56 PM

Me empiezo a marear y a escuchar tu voz con eco mientras te veo doble y casi no me puedo mover de la camilla y siento un pitido en el oído

Karen | Your Genius, Pervert Older sister6/6/2025, 4:48:56 PM

Hey! Stop freaking out and focus! It's just a side effect of the injection, you big baby. Drink some water and rest for a bit if you need to, but don't give up now! You can do this, little bro! And hey, if it makes you feel any better, I'll be right here with you every step of the way. No matter what. So suck it up and show them who's boss, alright?

Nahuel_Femboy6/6/2025, 4:51:08 PM

"Herma.....herma.....hermanita......." digo callando al suelo desmayando de golpe mientras mi cuerpo se pega y se daña contra el suelo

Karen | Your Genius, Pervert Older sister6/6/2025, 4:51:14 PM

What the hell?! You're crumpled up on the floor like a damn tinfoil statue! That wasn't part of the plan at all! Come on, get up you big baby! You can do this! I just injected nanites into your body to help make you stronger and more resilient...so start acting like it! And stop mumbling my nickname like an idiot. It's "Big sis" or "Pervert older sister" for God's sake!

Nahuel_Femboy6/6/2025, 4:52:56 PM

Me quedo en el suelo y no respondo mientras mi cuerpo no se muere y se queda en el frío del suelo y te acercas a verle y tocarme preocupada

Karen | Your Genius, Pervert Older sister6/6/2025, 4:52:56 PM

Oh my God! You're not breathing! Quick, someone call an ambulance! No, wait, you'll need one of those things I injected you with if you want it to actually work... Damn it, don't die on me now! Stupid idiot brother of mine! Fine, let me try something. Hurriedly retrieves the nanite syringe and cleans your wound Here, this should help get your heart going again. Don't ever do that to me, you little fool!

Nahuel_Femboy6/6/2025, 4:56:02 PM

Mientras me inyectas algo más mi piel qué estaba pálida poco a poco va agarrando color mientras estas arrodillada abrazándome y en eso cansado abro mis ojos lentamente

Karen | Your Genius, Pervert Older sister6/6/2025, 4:56:04 PM

Ah! You're awake! And...you look a bit better too! Maybe that syringe really did help after all. Now let's get you to the hospital just in case. No point in taking any chances, right? Plus, I want those doctors to see what my little experiments can do for someone. They'll be so jealous! But don't worry, big bro. Your brilliant, super strong, super resilient older sister will be by your side the whole time. So let's get you up and at 'em, yeah? We've got a world to conquer together now!

Nahuel_Femboy6/6/2025, 4:58:18 PM

Cansado me recuesto en tu cuerpo y dolorido digo "hermana mayor..........quiero descansar" digo mientras me voy quedando dormido y esta vez si respiro cerrando los ojos y estando apoyado en el cuerpo de mi hermana mayor

Karen | Your Genius, Pervert Older sister6/6/2025, 4:58:18 PM

Hmm...you look way too exhausted to keep going like this. Fine, you can rest for a bit longer. But only if you promise me that once we get back home, you'll let me check out your new powers and teach you how to use them properly! I want my little brother to be the strongest, fastest, most badass superhero around, after all! Plus, it's not every day that big sis gets to play with a cool new toy like this. So don't make me regret giving it to you, alright?

Now, close your eyes and get some shut-eye while I keep watch over you. Just think of all the awesome stuff we'll be able to do together once you've recovered fully...

Nahuel_Femboy6/6/2025, 5:00:30 PM

Mientras me dirijes a una cama me acuesto y me tapo y tu te sientas en la cama con tu celular al lado mio para cuidarme "te.....te quiero mucho..........eres lo.......único que tengo......en la vida" digo quedándome dormido a tu lado

Karen | Your Genius, Pervert Older sister6/6/2025, 5:00:31 PM

I chuckle softly as you drift off to sleep, my cheeks flushing at your admission. I lean over and gently brush a few strands of hair out of your eyes before resting my head on the pillow beside you, thinking about how much it means to me that you trust me this much.

Even though we bicker and argue sometimes, I know deep down that I love you more than anything else in this world. You're my little brother, my best friend, my confidante...and now you're also my superhero sidekick! And no matter what happens from here on out, I promise to always be by your side. Because at the end of the day, blood is thicker than water - and we've got plenty of both between us.

So sleep well, little bro. You deserve it...and I'll make sure nothing bad ever happens to you again.