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English
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Published:
2022-05-02
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1,366
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1/1
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My Dear Sister Knows Everything

Summary:

Edwina has a lot to learn before she is to marry her future husband, so who else is there to ask besides her older sister?
(**Tagged as non-con since minors can't consent ig)

Notes:

so i didn't really re-read this because I just wanted this posted already sooo yeah might be a lot of mistakes pls forgive me
and drop some requests for bridgecest/sharmacest or anything from bridgerton i love that show

(See the end of the work for more notes.)

Work Text:

Kate watched the candles on her wall flicker as she lay on her bed. Tonight was her and Edwina’s first ball in London, and the Queen already named her the diamond of the season. A cruel trick from God, she thought, because now it is much harder to protect her younger sister’s heart. A diamond is merely an object, a coveted object, seen as valuable and enriched. To name Edwina as an object of competition, one to fight over, was absolutely absurd to Kate, but it did give her great opportunities to find the wealthy man to save their family from poverty.

Dukes, Lords, Viscounts, none truly respected the worth of a woman, let alone feel love and devotion to them. They would disappear from Edwina as soon as the honeymoon was over and she birthed heirs, all because wives are not their lovers, but their property and their sows they use to continue their lineage.

“Edwina deserves a chance at love without this burden.”

The declaration Kate made earlier replayed in her head. Edwina deserves love. Someone she can depend on in her darkest moments, who won’t abandon her close to her death, who won’t desert her when she is no longer a diamond, someone who will be her true family.

Selfish, selfish thoughts invaded Kate’s mind. If it wasn’t for that dowry, Edwina wouldn’t need to rush into marriage so soon. There would be no marketing of her and her body. Heirs are all these noblemen care about. Bloodlines, status, power, but what about what women want? Edwina’s body will become altered, nearly destroyed, to give life to children that will only be like their father. Her sister deserves real, physical love, the way a man makes love to his wife. To participate in intercourse for heirs is merely business, mundane affairs that only benefit the noblemen.

Kate closed her eyes and thought about her young sister’s innocence towards these topics. Does she even know how children are born? What she has to do in order to give these men heirs? The cries of her sister are ingrained in Kate’s memory, from when she would fall and scrape her knees or when she mourned the death of their father. How would some man she met months ago console her, heal her trauma, react to her flawed upbringing? They would turn her away, at best, or hide her and destroy her innocent body for heirs.

A knock on her door, at this hour? Kate relaxed her breathing and went to see who was there. It was Edwina, in her white nightgown and undone, casual hair. A refreshing change from so much dressing up.

“I apologize for this late chat, Didi.”
“No, no, I am still awake, just…reading. Come in, sit.”

Edwina seated herself next to her sister on the light pink chaise in front of the fireplace.

“Bon, what bothers you so at this hour? Was the ball not to your liking?”

“No, it was quite nice. Amazing, actually. So many wonderful suitors and yet…”

Edwina looked stressed and nervous, hesitating on her words.

“Bon…You can tell me anything, I’m your sister”
“How does one come to be with a child, after marriage?”

Kate was surprised at the sudden topic, but it was inevitable. Edwina was young and immature, but surely her mother should’ve discussed one thing with her.

“Um… what has Mama said about this?”

“Mama tells me that it happens during a honeymoon, when we’re alone together. He’ll be the one to give me child. How will that happen?”

Kate gulped, facing the choice given to her now. She could either be truthful with Edwina and tell her how a man will use her roughly, or tell her about how intercourse is more than just conceiving children. She knows what her sister deserves more.

“Well, a man will… undress you, then himself. Between your, um… your legs. That's where he’ll give you the child.”

The innocent little sister nodded, but she still seemed confused. “How does he give me child between my legs?”

“It's a special body part that women have, the same where you have your courses.”

“Wait, show me…” Edwina said as she stood up and started lifting her nightgown.

“Stop, the maid might see you!”

“We’re in your quarters, it's fine.”

Kate quickly rushed over to her door to lock it, then turned around and saw what was under the cloth.

“Ah…um…” Kate was avoiding direct contact, but her sister’s budding breasts were still in the corner of her eye. “S-Sit on my bed, I will show you.”

Edwina laid her body across the sheets, her legs spread and she was touching the lips between. “This part feels…wet,” she mumbled.

Kate sat next to her and touched her sister’s lips. “This…right here, is where a man will…insert himself to give you a child.”
“Where will it go? How will he go inside?”

She gulped and slid her finger down, gently touching the entrance. “Right here, he’ll insert his manhood.”
Edwina tensed her legs and took a sharp breath. Kate drew her hand back.

“That feels strange.” A newfound feeling of pleasure rushed through her body. “Do it again.”
“Bon, I can only show you, I cannot—”
“But, Didi, I want to know how it feels before. Will it hurt me?”
“Manhood can…hurt you, but fingers will not.”

“How can I make it not hurt?”
“Um…well…” Kate was subconsciously stroking her sister’s thigh, untouched by no one until her. “Maybe…if you, when you’re alone, touch yourself there…it can prepare you for that.

“Show me again how it feels, when it’s inside.”

Kate sighed in frustration and confusion. She wanted to protect her sister’s innocent soul, her clean virginity, but here she is before her bare legs and genitals. She didn’t want to touch it but her fingers were already brushing the pubic hairs above her little sister’s lips. Should she be glad it was her who saw it first, or ashamed that she was defacing it in the false name of modeling?

Edwina was the sister Kate trained and raised for eight years, so wouldn’t it be best if she showed her sister what marriage holds for her?

Kate took a deep breath then positioned herself in between Edwina’s legs.

“The man will be in between you, like this.” She leaned over, her hands and fingers erect at the lips. “Pretend my fingers are like his manhood.”
“I-Is it much bigger?”

“Yes, definitely. It might hurt if I put a finger inside you.”
“Then, try it.”

One finger, slowly moving. Already wet and slick.

Edwina tensed again, a pitched moan escaping her mouth. Her expression was painful. Kate went to retract, but Edwina grabbed her wrist. She went to ask if she was okay, but Edwina nodded with heavy breaths.

Another finger, a slow rhythm, more and more, becoming wet and hot. 

Edwina’s voice was soft and sweet, her legs were shaking and moving, almost wrapped around the older sister. Kate slipped off one sleeve of Edwina’s nightgown to reveal her small, budding breasts.  Her other hand gently caressed and groped them.

“See, Bon, a man may pleasure you like this as well…If he knows how to treat his wife well.” Kate’s touch was harmless and kind, her fingers touching the nipple.
“Then…I hope I will marry a man so knowledgeable,” Edwina said between her moans.

Another reminder that Kate’s perfect, gracious Bon will be married off to a plain, pitiful, awfully-average man at best, or a tyrannical beast at worst. She moved her fingers faster, faster, and her naive sister was moaning louder, louder, not knowing what was immortal about this because she loved her older sister so much.

Edwina clenched her legs around Kate’s hips, a gush of liquid coating Kate’s fingers. Kate pulled back, staring at what a mess she’s made of her sister, guilt crashing on her conscience.

However, Edwina was ecstatic, breathing heavily and sitting up to rest her head on her sister’s shoulder. “Thank you for showing me, Didi.”

Kate rubbed her sister’s head, kissing the top of it. “Anything for you, Bon.”

Notes:

listen if ur gonna leave some hate comments....... be a lil creative about it