What Are The Top Buffy Crossover Fanfic Pairings?

"You drive me insane, pretty Noelle. You test me. You ruin me. Fuck, how do you have so much power over me?" He speaks like he aches, his voice quivering with fire and need. I yank his head back up and kiss him like I'm starving. "I deserve to be punished, don't I, baby? Then punish me," I whisper against his lips. …. Noelle is just a cleaner in a powerful company, surviving a life she didn’t choose… until one reckless night puts her in the bed of the most dangerous man in the city. Azren Lakewood. CEO. Tribrid. Monster. He has blood on his hands, voices in his head, and a darkness that devours everything it touches. He saved her once. Now he wants her completely, obsessively, and without mercy. But Noelle isn’t free. She’s already bound to another Alpha… one who will burn everything down to claim what’s his. And Azren doesn’t share. What starts as a fake marriage quickly turns into something far more dangerous—possession, hunger, and a bond neither of them can break. Because loving Noelle doesn’t just mean war. It means unleashing the beast within, which Azren has spent his life trying to control. The New Order wants his power even at the cost of his own soul, will Noelle, his only light and salvation, be able to save him? And at what cost? …. Warning: Explicit content. Possessive/morally grey characters, violence, emotional manipulation, trauma, and intense themes. 18+ only.

Every encounter leaves a mark. Behind closed doors, desire wears many faces—dangerous strangers, forbidden temptations, second chances, and nights that blur the line between pleasure and regret. Sinful Encounters: A Steamy Collection brings together intoxicating stories filled with scorching chemistry, emotional tension, and irresistible attraction. From slow-burning seduction to reckless passion, each story invites you into a world where hearts race, boundaries shatter, and one touch can change everything. Darkly alluring, addictive, and unapologetically sensual—this collection is perfect for readers who crave romance with heat, obsession, and unforgettable sparks.

Three forbidden mates. Three supernatural bonds. One twisted fate. A vampire bred for bloodshed. A dragon prince who defies his crown. A demon with nothing left to lose. For Marcus DeLuca, a mate has always been an impossibility. But fate gives him one anyway. A werewolf. His mortal enemy. And she’s already promised to her alpha. Will he betray his father and Elders to keep Danielle alive? Aidan is supposed to be untouchable. But one reckless decision—one taste of Sarah—and he shatters every rule that keeps their worlds apart. Now he’s losing control, becoming the greatest danger to Sarah’s life. Can he still protect his reluctant mate? Zane is used to being wanted. Desired. Feared. As an incubus, pleasure is his weapon—and his curse. But Elena is different. Smart. Ruthless. Untouchable. Not interested in him in the slightest. Can he survive the one woman who sees the monster inside him? Their bonds are brutal. Addictive. Dangerous. And the only thing more deadly than loving each other is what happens if they don't.

Nevaeh Rivera is just a regular girl trying to get through her last year of high school. On the outside, it looks like she has everything. Unfortunately, her home life is not so glamorous. Her parents have abandoned her, her boyfriend is a cheater, and her best friend is too busy to make time for her. The only bright spot in her life is her dream angel. Too bad that he's only a dream. Or is he? Mikhail Cross is an angel/ demon hybrid. Unfortunately, he's the only one of his kind. The supernatural council will only let him live if he can assimilate with humans. When the council decides to test him by sending him to High School, Mikhail doesn't expect to find his mate. The day that Nevaeh and Mikhail meet, is not quite a meet-cute. There is no love at first sight. However, there's a thin line between love and hate. What will happen when fate takes over?

Some lines were never meant to be crossed... but the heart doesn't always follow the rules. "Crossed Lines: 40 Forbidden Stories" is a captivating collection of forty unforgettable tales where love appears in the most unexpected places and every choice comes with a price. From impossible attractions and long-buried feelings to family secrets, second chances, and relationships that challenge society's expectations, each story explores the delicate balance between desire, loyalty, and the consequences of following one's heart. Every chapter introduces new characters, new conflicts, and a new journey filled with emotion, heartbreak, hope, and unforgettable twists. Some will fight for love. Some will walk away. Others will discover that the greatest battles are the ones within themselves. Forty stories, forty impossible choice and one unforgettable collection. Will they obey the rules... or cross the line?

A vampire-witch hybrid who sees her immortality as a curse, and a werewolf doomed to die young… Katharina Haven has outlived countless empires, drifting through the centuries until even existence itself felt hollow. To her, immortality is nothing but a gilded prison, so she began to search for a way to escape it. Yet answers continue to elude her. Until the night a tiny, bleeding wolf pup collapses on her doorstep. Xander Moonstone is no ordinary werewolf. Afflicted by an ancient bloodline curse, he shrinks into a helpless pup on full moons, suffering agony that will eventually kill him long before his prime. Katharina saves him on impulse, unaware that from that moment—or perhaps long before—their fates had already begun to entwine. But when her “little creature” unexpectedly shifts into a full-grown man in her arms, the fragile trust between them shatters and believing she'd been deceived, she drives him out. Fate, however, is not so easily severed. On the next full moon, Xander returns to her, bleeding and dying. And Katharina, against all logic, saves him again. As she digs deeper into his condition, she uncovers the truth behind his curse… and also learns that a cure demands an unforgiving price. To save him, she must die in his place. For a woman who longs for mortality and a man fighting desperately to extend his fleeting life, their love may be the cruelest curse of all.