
Check out this gripping story about Sophia. She's a young Omega schoolgirl. Her perfect life falls apart when she catches her boyfriend Bruce cheating. And guess who with? Her best friend Luisa! Sophia is heartbroken.
But then things take a wild turn. She meets Bryan Morrison. He's the ruthless head Alpha of the Night Shade Pack and also Bruce's older brother. This guy is a cold-blooded business tycoon. At Bryan's engagement ceremony, Sophia realizes the truth that he's her real mate. Cue the enemies-to-lovers drama. She goes from weak Omega to strong survivor.
Dive into this addictive story of rejected mates, forbidden passion, and transformation—read Mated To Big Brother-in-law now on MoboReader!
【Rejected Mate+School Girl+Enemies to Lovers+Weak to Strong】
As I entered the room. I saw them kissing passionately. Bruce’s hands were caressing Luisa’s breasts tenderly and then going down her slender belly and ending up at her clean, hairless pussy.
Luisa opened her legs wide to let Bruce’s hands play with her pussy more freely and they kiss again.
Outrageous! One is my boy friend, and the other is my best friend! How could they do this to me!
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Life was perfect until she met her boyfriend's big brother. There was a forbidden law in the Night Shade Pack that if the head Alpha rejected his mate, he would be stripped of his position. Sophia's life would get connected with the law. She was an Omega who was dating the head Alpha's younger brother.
Bryan Morrison, the head Alpha, was not only a cold-blooded man but also a charming business tycoon. His name was enough to cause other packs to tremble. He was known as a ruthless man.
What if, by some twist of destiny, Sophia's path was to intertwine with his?
Part 1: The Main Characters of Mated To Big Brother-in-law
Part 2: Plot Summary of Mated To Big Brother-in-law
Part 3: The Most Popular Chapters of Mated To Big Brother-in-law

Sophia is a dedicated freshman Omega at the University of Night Shade. On the surface, her life looks perfect. She has a loving family. Everything seems great—until betrayal flips it all upside down. She's dating Bruce Morrison, the younger brother of the pack's head Alpha. He's charming, sure, but also two-faced. Then Sophia catches him in a passionate affair with her best friend Luisa. After two years of loyalty, her trust is shattered.

Bryan Morrison is the head Alpha of the Night Shade Pack. And he's terrifying, cold-blooded and ruthless. His gaze is like a dagger. Everything he does is deliberate. On top of that, he's a business tycoon. He's made his pack crazy rich.
Then fate steps in. It's his engagement ceremony. Sophia's wolf catches his scent. She couldn't help but blurt out, "Mate!" And he does not look happy about it.
Bruce seems calm and collected on the outside. But don't let that fool you. He's hiding his infidelity and getting impatient with Sophia's boundaries. As an Alpha, he says his desires just couldn't be satisfied. So he went looking elsewhere. When Sophia confronts him? His real side comes out. He becomes shameless and aggressive, even slapping her. Then he puts her down, saying she's just a weak Omega.
Here's the story from Mated To My Brother-in-Law. Sophia's whole world falls apart. She catches her boyfriend Bruce cheating. And guess who with? Her best friend Luisa. Bruce just happens to be the younger brother of Bryan Morrison—that's the scary head Alpha of the pack. Sophia stayed loyal for two years. Then this happens. She's devastated, heartbroken and humiliated. She confronts them and ends the relationship.
Now it's her eighteenth birthday. She's still hurting. But fate has other plans. She ends up at Bryan's engagement ceremony. Suddenly, she smells something irresistible. That's when she realizes—Bryan is her true mate. Shocking, right? There's also a forbidden pack law. The head Alpha can't reject his fated mate. No matter what.
So now we've got enemies who might become lovers. Sophia goes from weak Omega to strong survivor. And Bryan? He's cold, ruthless, and a powerful business tycoon. Will they break pack laws? What about their personal grudges? This story is full of rejection, passion, and destiny.
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Sophia gets woken up by her brother Abraham. He's the new Gamma of the Night Shade Pack. Then she threatens her boyfriend Bruce Morrison to hurry up. Bruce is the calm brother of the ruthless Alpha Bryan. Here's the pack law: the head Alpha can't reject his fated mate. If he does, he loses his position. Sophia throws on some simple clothes. Then Abraham drives her to Night Shade University.
Sophia walks in on Bruce. He's naked with her best friend Luisa. Right there in his bedroom! Turns out they've been having an affair for a whole year. She's heartbroken. So she ends it. But Bruce slaps her. He calls her a weak Omega. She storms out. Then she wanders down this scorching hot road. She nearly gets hit by a convoy. That's when Head Alpha Bryan Morrison shows up. He walks over to the distraught girl.
Sophia wakes up in her room. She fainted into Bryan Morrison's arms earlier. Now she remembers Bruce's betrayal with Luisa. Her mom tells her what happened. Her brother Abraham brought her home after that incident with the Alpha's convoy. Later, Sophia cries alone. But when her family surprises her at midnight for her birthday, she hides her pain. She just accepts her fate.
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