55 Book(s) Related to Unfaithful Vow

"I'm pregnant, Xarion."
He doesn't even look at her.
"Abort it."
Four years later, she is no longer the wolfless girl who once begged for his love.
She is a mother. A warrior. A woman who rebuilt herself from the ashes he left behind.
And she has no intention of ever belonging to him again.
Until fate brings them face to face.
"You belong to me, Megan," Xarion growls, backing her into the shadows.
"Not anymore."
But this time, Megan is no longer the one with everything to lose.
He doesn't know she was never wolfless.
He doesn't know the truth behind the prophecy that forced him to push her away.
And he has no idea their twins are alive.
Now, as enemies rise and secrets begin to unravel, Xarion is forced to confront the truth: that the woman he broke is the only one he cannot live without.
He let her go once.
This time, he'll fight fate, enemies, and even himself to win her back and become the man she deserved all along.

"I'll pay off Derek's debt and guarantee his protection from the Rogue King. In exchange, you sign a contract agreeing to be mine."
"Yours?" I step back, my ass hitting the edge of his desk. "What does that even mean?"
"It means you move into my estate. You act as my mate in public. You fulfill all the duties of a Luna. And in private... you belong to me completely."
"You can't just... I'm going to be your stepsister in three months!"
"Which makes it even more interesting, doesn't it?"
I loved Derek Savage for six years, believing he'd be my mate someday. When one reckless debt threatens his life, it leaves me no choice but to beg his older brother, Reign, for help. Reign's deal is simple: he'll pay Derek's debt. In exchange, I become his. For six months, I belong to the one man I should never want, my future stepbrother, my Alpha, my forbidden craving. And the worst part? Every time he touches me, I stop caring about right and wrong.

Brie planned the perfect night to give herself to Jeff—the man she loved, the man she trusted. But one moment of mistaken identity shatters everything. In the dark, she surrenders to passion… only to discover the man in her bed isn’t Jeff but his identical twin.
Now, one night threatens to unravel her relationship, her heart, and everything she thought she knew about love.
Was it an unforgivable mistake—or something deeper she’s afraid to admit?

Lyra is exposed to the horror of war, torture, and savage treatment from the brutal Alpha King, Ryker Ashbane, who kills her parents as payback for the death of his parents and pack. Things take a turn when the moon goddess blesses her with her fated mate, who happens to be the same man who has vowed to torment her.
Lyra is faced with challenges that resurrect a power core she never thought she had.
Her newfound powers brandish her and seal her thirst for blood and vengeance, but the moon goddess has something else in store for them.
In a twist of fate, they are faced with a horrifying truth in this game of power. But for Lyra, the wounds cut too deep.
The fierce Alpha is torn and is on a quest to win her heart. Sacrificing his life for her, will Lyra give him another chance?

She needed a job.
He needed control.
Neither expected to fall apart for each other.

Elena Rivera is a Brooklyn-born fighter working two jobs, caring for her sick brother, and doing everything she can to survive in a city that swallows girls like her whole. When a fiery encounter with New York’s most ruthless billionaire unexpectedly lands her a high-paying assistant role, she’s thrown into a world of power, luxury, and danger she never asked for.

Adrian Drake is cold, brilliant, and untouchable—a man who built his empire from nothing and trusts no one. Especially not the beautiful woman with sharp eyes and a stubborn heart who now sits outside his office.

What begins as a tense business arrangement spirals into something deeper, darker, and more dangerous. Secrets unravel. Enemies close in. And when emotions cross the line, both Adrian and Elena must decide:

Is love worth risking everything when everything is what you stand to lose?

Genre: Contemporary Billionaire Romance.