Which X-Men Fanfics Use Mystique To Portray Complex Sibling Bonds Like Nightcrawler And Rogue?

I was once the only younger sister of the Alpha family, and my quadruplet brothers treated me like a princess. But three years ago, they accidentally ran into their “real sister” and I turned out to be the fake one. From being the family's most cherished daughter, I gradually became the target of their bullying under the schemes and traps of the “real” Alpha daughter. After I finally decided to flee from the quadruplets, and from the toxic family, I realized they are my fated mates on my 19th birthday...

"What am I?" Diana whispered, staring unbelievably at the lightning bolts flickering from her fingertips. "Why am I different?" "You aren't just different, Diana." Freya said, and she cupped Diana's face and stared into her eyes. "You are special, and you are exactly what this realm needs to restore balance." "What if I can't do it?" Diana asked worriedly, closing her palms to contain the power trying to break out. "You must try, because this is only the beginning." Freya looked to the distance, her eyes reflecting the dying light. "Enemies will arise, and they will try to destroy you." "They will have to go through us." A deep voice spoke behind them. Diana turned and her gaze connected with three handsome men. Alden, Asher and Axel. Her mates. ... Diana's world is shattered by a revelation that shakes the very foundation of her existence: Alden, Asher, and Axel, the brothers she's grown up and fallen in love with, are not her real siblings, but her destined mates. Struggling to come to terms with this unexpected discovery, Diana finds herself thrust into a dangerous game of deception and betrayal. As former allies become adversaries, and sinister plots threaten to tear apart the bonds between her and her mates, Diana must navigate a treacherous path where every step could lead to her downfall. With danger lurking around every corner, Diana's fate hangs in the balance. Can she defy destiny and carve out her own future, or will she succumb to the forces working against her, plunging into an abyss of uncertainty and despair?

They sent me into the snow to die a sickly omega with a heat-soaked scent and poison on my skin. I was nothing to my pack but a sacrifice to the monster they feared most. The rogue alpha should have killed me. Instead, he inhaled my scent and went still. “Mine,” he growled and I felt the bond slam into place like a cage I never asked for. I was his fated mate, bound to the most dangerous wolf alive. And my pack’s executioners were already closing in. But when my scent later calls to a second alpha—and a third—the world we know begins to burn. I’m no longer the weak omega they threw away. I’m the nexus of a multi-mate bond that could shatter the pack order forever. The question is: will my mates destroy each other for me… or will we forge a new world from the blood of the old?

This story follows two souls bound together by the moon. One is an Alpha and the other is a rogue, looking for a place to finally be accepted. Both cross paths when she enters his pack. He is furious when he realizes who she is to him. But as they spend more time together, he starts to have second thoughts about the bond they share and she realizes that maybe she could be accepted in his pack, after accepting herself. Will he be able to let go of a promise he made to himself years before? And will she be able to find peace for a part of her past that troubles her?

My life ended the night mom married Alpha Darius, because that was the night I fell into my new stepbrother—Damon's arms. One forbidden mark. One night of weakness. And now, I’m carrying twins that should never have been possible. A curse. When Damon turned on me, I ran, straight into Rhys—the Rogue Alpha feared by every wolf. He wants my bloodline, my unborn twins, my power. But fate has other plans and soon, I become both his prisoner and his deadliest temptation. Caught between two Alphas and a prophecy that could end our world, I have only one purpose—protect my children, no matter the cost.

I was once the only little sister of the Alpha family, treated like a princess by my twin brothers. But three years ago, they found their "true sister"—and I turned out to be the fake one. From the most cherished daughter of the family, I gradually became their target of bullying, through the schemes and traps set by the "real" Alpha daughter. When I finally made up my mind to escape from those devilish twins and this twisted family, on my eighteenth birthday, I discovered—they are my fated mates…