book cover of My Sister\'s Affair with My Husband
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My Sister's Affair with My Husband

(2026)
(Book 25 in the Her Marriage in Crisis series)
A novel by

 
 
She flew home from New York two days early to surprise her husband.
Then she hears her sister moaning her husband's name from the bedroom upstairs.

Her sister Megan has been the favorite since birth. The pretty one. The one Grace let win at board games because losing made her throw things.

Connor stopped touching Grace six months ago. Now she knows where his hands have been.

She doesn't scream or open that door.

She calls Megan's husband instead. Dylan picks up on the first ring.

He's been watching Grace across every family dinner for two years. Wanting what he couldn't have. Planning his exit.


"I found her burner phone," he says. "Five months of messages. They've been cheating for a while."

That night, Grace is in his apartment, and sparks fly. She doesn't feel guilty. She feels awake.

But while she plans her revenge, she plays the loving wife. Kisses Connor goodbye. Hides cameras in her own bedroom. Helps her sister pick out a red dress for the anniversary party.

Megan texts her the morning of: "So excited for tonight! Love you sis 💕"

Grace doesn't reply.

On her fifth anniversary, the video plays in front of everyone.

Grace is already walking out the door. And she's choosing herself. And getting a new man who deserves her.

What to Expect:

💔 Sister as the Other Woman 💔 Cheating Husband 💔 She Falls for Her Sister’s Husband 💔 Two Years of Quiet Pining 💔 Co-Conspirators to Lovers 💔 Public Slideshow Takedown 💔 High Angst 💔 Family Drama 💔 Steamy Scenes '''' She Chooses Herself 💔 HEA


Genre: Romance

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