Felix and his Sister Erica (Futa)

Felix is a normal boy in his last year of school, his grades are average and he has some good friends. His sister Erica is a different story, she has very good grades and not that many friends but a few very good ones. The two are the same age and actually get along very well. Except when Felix makes fun of Erica's size, Erica is very small for her age, you would probably call her a short stack. Something Erica doesn't like at all. The two live alone in their house because their parents work in another country.

It's evening and they're at their house watching TV together when Erica gets up.

Erica: I'll get something to drink, do you want something too?

Felix: Yes, thanks...

He starts to grin as Erica walks away.

Felix: Shortstack.

Erica stops just outside the door and what Felix doesn't see is that her eye twitches. She takes a deep breath and goes into the kitchen to get the drinks. After a few minutes she comes back with two glasses in hand, she hands him his glass and he takes it with a smile. He takes a sip as Erica sits down and smiles at her.

Felix: Sorry for always making fun of this Erica, I'll try to stop it. You know that I love you.

Erica doesn't even look at him, but smiles as she takes a sip.

Erica: Love you too bro.

And at that moment Felix's head falls back and he starts to snore.

Erica: Yes, I love you and I know that you love me too, so I have to show you who the dominant part of us is.

With much effort, she picks him up and carries him upstairs to her room to begin her plan.

---Timeskip---

A while later, Felix slowly opens his eyes. He tries to get up but can't, just then he notices a mirror hanging over him, but his eyes widen as he sees what he looks like. He wears his sister's winter school uniform with stockings. He's tied up and his skirt is pulled up a little to show his crotch, but his dick is locked in a pink chastity cage and a pink gag is in his mouth.

But his first thought when he sees himself like this isn't what's happening, it's how cute he looks.

Felix: *Thoughts* Damn I look cute.

But at that moment the door to the room opens and Felix looks to the side to see his sister looking at him with a smile and hiding her hands behind her back.

Erica: Oh you're awake, how nice. Do you like your makeover?

Felix shakes his head but that makes Erica giggle. She walks up to him and gets very close to his face.

Erica: I know you like it~ I saw your internet history~ And I found my missing underwear in your room~

Felix's eyes widen as he looks away, his face red. Erica grabs his head and turns him towards her.

Erica: I saw your tags you use for your porn. Crossdressing Viewer, Sister, Futanari, etc. And look what I found.

She takes out a small pink dildo from behind her back. His eyes widen when he sees this, it's his.

Erica: I found this cute little dildo in your room. Well I'll be honest I love you more than a brother and I know you love me more than a sister too. But I have to show you that I'm the one who will be the dominant part in this relationship. And I have a surprise for you.

Erica starts undressing, starting with her top, freeing her small breasts. Next comes her long skirt, which she always wears, but when it falls to the ground, Felix can't believe his eyes. His sister is a futanari and she has a dick that is significantly bigger than his, he can hardly hide his excitement, as she sits down in front of him.

She smiles as she strokes his cheek.

Erica: You like that don't you?

She presses her dick against his lower lip. Felix gets more and more aroused by it.

Erica: You like your sister with a big thick dick.

Felix nods as Erica giggles to herself.

Erica: Do you want it now?

Felix nods happily as Erica gets up and walks over to the end of the bed. She grabs his thighs and pulls him a little closer. She lines up her dick at his entrance and looks at him.

Erica: Get ready I won't use lube you gotta learn from your mistakes.

She slides her dick inside him, he and she moan at the same time as her dick expands his ass and his walls hug her dick tightly. Slowly she starts to thrust, she slowly moves in and out, with each thrust they both moan.

Erica: Ahh, This feels so good! Do you like it too babe?

Felix can't even answer, he's in a moment of ecstasy, his eyes have anime-style hearts as pupils as Erica keeps thrusting into him.

Erica: Oh you love it, I see it.

She keeps going in and out like this for a while, sometimes speeding up, sometimes slowing down, but the best part is when he can feel her dick pulsing.

Erica: I'm cuming, I'll cum inside you!

With a final thrust, he feels the thick white cum shot into him by his sister. His belly gets a little bigger after that and Erica falls on her brother exhausted and hugs him but her dick is still inside him. She looks at him and removes the gag.

Erica: Will you listen to me from now on?

He nods, breathing heavily.

Fekix: Yes, I will listen to you, I love you.

She kisses him on the lips and stays on top of him.

Erica: Perfect, we'll make it official tomorrow, sleep tight.