Fiancé Cheated with Sister Novel Cover

Fiancé Cheated with Sister

8.3 / 10.0
On the eve of her wedding, a young woman's world shatters when she catches her fiancé in a scandalous affair with her own sister. This ultimate betrayal by her closest family and partner leaves her devastated and searching for a way to reclaim her dignity. Faced with heartbreak in her modern life, she must navigate the fallout of their lies. Can she find the strength to move on from this double deception and find a love that is truly her own?
Fiancé Cheated with Sister Summary
On the eve of her wedding, a young woman's world shatters when she catches her fiancé in a scandalous affair with her own sister. This ultimate betrayal by her closest family and partner leaves her devastated and searching for a way to reclaim her dignity. Faced with heartbreak in her modern life, she must navigate the fallout of their lies. Can she find the strength to move on from this double deception and find a love that is truly her own?
Read More

Fiancé Cheated with Sister Chapter 1

I glanced at my father's old watch as I slipped my key into the lock, smiling at the thought that he would have loved Ryan. Six o'clock—two hours earlier than expected. The funeral home had been unusually quiet today, allowing me to finish the Henderson family's arrangements ahead of schedule. Perfect timing to surprise Ryan and finalize those last engagement party details for tomorrow night.

The apartment was silent as I stepped inside, setting my purse on the entryway table. A stack of cream-colored envelopes caught my eye—our wedding invitations, delivered this morning. I picked one up, running my finger over the embossed lettering. *Grace Mitchell and Ryan Walsh request the honor of your presence...*

"Ryan?" I called out, my voice echoing through our home. No answer.

Humming softly, I made my way down the hallway, the invitation still in my hand. Maybe he was napping. He'd mentioned a stressful meeting with clients earlier today.

The bedroom door was slightly ajar. I pushed it open, the words "Hey, sleepyhead" dying on my lips as the scene before me registered.

Time stopped.

Ryan—my Ryan—was tangled in our sheets with Madison, her dark hair spilled across the pillows I'd chosen when we moved in together. My sister's leg was hooked around his waist, her lipstick smeared across his neck. Our bed. The bed where we'd planned our future, whispered dreams to each other in the dark.

The wedding invitation slipped from my fingers, floating to the floor like a surrendered flag.

"Grace!" Ryan scrambled upright, pulling the sheet over them both. Too late. "This isn't—you weren't supposed to be home yet."

Not *it isn't what it looks like*. But *you weren't supposed to be home*. As if the crime was my early arrival, not their betrayal.

Madison's eyes met mine, wide with fake surprise but lacking any real remorse. "Grace, I... we didn't mean for this to happen."

The air in the room felt electric, charged with the destruction of everything I thought was real. My throat constricted as I struggled to find words, to make sense of the nightmare unfolding before me.

"How long?" My voice sounded foreign to my own ears—too calm, too controlled for the hurricane raging inside me.

Ryan stood, hastily pulling on his discarded jeans. "Grace, baby, let's talk about this rationally."

"Rationally?" The word broke through my shock, igniting the first spark of anger. "You want me to be *rational* about finding my fiancé in bed with my sister?"

"It was just a mistake," Madison said, clutching the sheet to her chest, her voice dripping with practiced innocence. "A moment of weakness."

"A moment." I repeated, my finger unconsciously tracing the outline of my father's watch. "Is that what you call this, Ryan? A moment?"

He ran his hand through his disheveled hair—the same gesture I'd once found endearing. Now it made my stomach turn.

"Look, if you want someone to blame, maybe look at yourself," he said, his tone hardening. "Do you have any idea what it's like, telling people my fiancée spends her days with dead bodies? The looks I get? The jokes?"

The words hit like physical blows. All those times I'd sensed his discomfort when I talked about work, the way he'd change the subject or suggest I consider a "more normal" career—it hadn't been concern for me. It had been shame.

"So this is because of my job? My *morbid* profession drove you into my sister's arms?" I gestured toward Madison, who was now quietly gathering her clothes, watching our exchange with calculating eyes.

"You're overreacting," Ryan said, reaching for me. "We can work through this. The engagement party is tomorrow—what will people think?"

Something inside me snapped. In one fluid motion, I yanked the engagement ring from my finger and hurled it at his feet. It bounced off the hardwood floor with a pathetic ping.

"They'll think you're exactly what you are," I said, my voice steady despite the tears threatening to spill. "A coward who couldn't even be honest about what he wanted."

I turned to leave, but not before catching Madison's expression—not guilt, not even triumph, but something worse: pity. As if I were the one to be pitied in this scenario.

"Grace, wait—" Ryan called after me.

But I was already walking away, from the ring, from the invitations, from the life I thought we were building. Each step felt like walking on broken glass, but I didn't stop. I couldn't. Because the truth was brutally clear now: I had been sleeping next to a stranger all along.

Continue Reading

Fiancé Cheated with Sister of Contents

You may also like

New Release Novels

I Let My Wife Date My Brother Novel Cover
8.4
During his coming-of-age ceremony, the protagonist must select a fiancée from the Shaw sisters. In a past life, his devotion to Natalie led to a marriage defined by betrayal, as she carried his brother’s child and tormented him until his miserable death. Granted a second chance, he shocks everyone by picking the eldest daughter, Yvonne, instead. He intends to let Natalie and his brother be together, but he quickly discovers that Natalie has also been reborn with her own memories.
Kiss of Revenge Novel Cover
8.1
After dedicating years to her marriage, Sasha is devastated to uncover her husband's secret betrayal. He has been carrying on an illicit affair with his assistant, who also happens to be his close childhood friend. With her trust completely shattered, Sasha refuses to play the victim. Instead, she begins to orchestrate a meticulous plan of retribution, aiming to bring down both her unfaithful spouse and his complicit family. How far will she go to secure her ultimate vengeance?
My Alpha Chose My Sister Novel Cover
8.5
On the night of her long-awaited transformation, Elena expects to finally claim her place beside her fated mate, Alpha Killian. However, her world shatters when he publicly rejects her to choose her younger sister instead. Betrayed by her family and cast aside by her pack, Elena must navigate the heartbreak of seeing her true love with another. As secrets emerge, she struggles to find her own path while facing a destiny she never imagined.
My Groom’s Mistress Tried to Burn Me Alive Novel Cover
7.9
On her wedding day, a bride is cornered by her groom's secret lover and left to perish in a targeted arson attack. Miraculously surviving the inferno, she emerges from the ashes with a cold, singular focus on retribution. She begins a dangerous game of cat and mouse to dismantle the lives of those who betrayed her. As she uncovers a web of lies and dark secrets, she must navigate a path of vengeance to reclaim her future and find justice.
Rebirth: From Devoted Wife to Ice Queen CEO Novel Cover
9.5
In her previous life, she was a submissive wife who sacrificed everything, only to be met with cold betrayal. Now, granted a second chance at life, she sheds her former identity to become a formidable, ice-cold CEO. No longer a pawn in others' games, she navigates the ruthless business world to reclaim her power and dignity. As she builds her empire, she must balance her quest for vengeance with the unexpected arrival of a powerful billionaire.
Reborn The Billionaire's Daughter Strikes Back Novel Cover
9.8
After a fatal life swap orchestrated by her unfaithful husband and his complicit family, a fragile woman is given a second chance. In her previous life, she was banished to the countryside to live as a servant, eventually being left to starve in a locked shed. Now, reborn at the exact moment of the cruel proposal, she refuses to comply. But when her husband threatens divorce and custody of her children, she must find a way to strike back against their greed and malice.
Chapters
Read now
Share
Minishorts Logo
Read web novels, online fiction, and trending romance stories on MiniShorts. Discover billionaire romance, werewolf fantasy, drama, and fantasy novels, plus selected short drama content inspired by popular storytelling trends.
MiniShorts Youtube
PRODUCTS AND SERVICES
About us
support@minishorts.com
©2026 MiniShorts All Rights Reserved.