Deviate Me by Daphne Thorne

Genre: Dark Vampire Romance / MMM (book 1 of 3) Published: May 27, 2026 Rating: ⭐⭐⭐⭐ / 5 stars Spoilers: YES — full spoilers ahead. You have been warned.

“He’s just so pure and untouched. I want to corrupt him. I want to get a glimpse of his bad side. He’s too angelic and it frustrates me to no end.” — Damien

That quote, friends, is the thesis statement of this entire book. And Daphne Thorne delivers on every single letter of it.

Who Are These People and Why Am I Obsessed With Them

Let’s set the scene. Killien Taylor and Damien Moore are stepbrothers — two years apart, raised mostly by each other after running away from a neglectful home at eighteen and sixteen respectively. They have matching tattoos behind their left ears: a D on Killien’s, a K on Damien’s. They have been each other’s whole world for six years. And now they’re vampires.

Their maker, Ledger, turned them and then promptly vanished, leaving two newly-minted bloodsuckers to figure out immortality alone in a rundown Phoenix house. Into this vacuum walks Jacob — tattooed, piercer, vampire, and somehow the most emotionally mature person in a cast of chaotic disasters. He is Damien’s boyfriend. He is also, increasingly, a problem for Killien’s entire sense of self.

The dynamic between these three is what makes Deviate Me so utterly consuming. Killien is the responsible one, the protector, the man who worked two jobs to buy Damien his dream car just to see him smile. Damien is the chaos agent — pierced, sadistic, shameless, and completely, devastatingly in love with his stepbrother, even as he refuses to be the one to crack first. And Jacob is stuck squarely in the middle, feeding both of them vampire blood, setting firm boundaries, and slowly becoming a third pole in a gravitational field he probably didn’t sign up for.

The Plot, With All the Spoilers

The book opens on Killien’s POV, watching Damien plan his nipple piercing appointment with Jacob and trying very hard not to care. This is the energy of the entire first half: Killien performing indifference while falling apart inside, and Damien scheming.

And Damien’s schemes are magnificent. His first major move is luring Killien into a shared feed — orchestrating a hunt where they both feed from (and kill) the same victim, Clara, with Damien making her come in the backseat of their SUV while Killien watches in the rearview mirror. It’s designed to crack Killien open. It mostly works. Killien doesn’t say a word. He steps out of the car, smokes a cigarette, stares at the stars, and shuts down completely.

The tension escalates from there. Jacob agrees to let the brothers drink his vampire blood — a scene that is simultaneously the hottest and most emotionally loaded chapter in the book. Vampire blood, we learn, acts almost like a drug: it intensifies emotion, sharpens connection, and is deeply intimate in a way human blood isn’t. Killien, high on Jacob’s blood, tells him “what if I want it to get weird?” and then has to live with having said that out loud.

The fallout is where things get genuinely heartbreaking. Damien sleeps with Jacob — something Killien knows, and suffers through in silence from a balcony at a party, checking his phone every few minutes and watching the clock. When Jacob finds him out there, clearly crying, and offers him the kind of genuine warmth and care that Killien doesn’t know how to receive, Killien’s response is devastating:

“He doesn’t need me anymore, Jacob. He has you now.”

He storms out. He drives to an alley and kills two people in a rage — not for blood, just for the violence of it, letting the beast he’s always kept caged finally run free. And then, in the most gut-punching sequence of the book, he goes to a gay bar and picks up a stranger named Caleb who looks just enough like Damien that Killien can let his guard all the way down. In his head, it’s Damien the entire time. He doesn’t say the name out loud, but it is stitched into every sentence of those chapters, humming beneath the surface like a live wire.

“It was wrong. So very wrong… I must not deviate. I won’t let it go beyond my thoughts.”

Reader, I shook.

Meanwhile, Damien is also cracking — just in the opposite direction. He’s always known what he wants. What’s new is the guilt. He starts to feel it during sex with Jacob, when tenderness sneaks in and his mind drifts to Killien. He doesn’t want sweet. He wants to be ruined, because being ruined means he can stop feeling. He cries during one scene and immediately claws Jacob’s back until he bleeds to reset the tone. It’s messy and human and I adored every bit of it.

The book ends before they get there. This is book one of three, and Thorne is clearly playing the long game. What we get is momentum — the two of them in closer and closer orbit, the denial getting thinner, Jacob becoming more entangled rather than less — and an epilogue that makes it very clear the next book is going to destroy us.

The Trope Breakdown

  • Stepbrothers-to-lovers — the central engine of the book, slow-burned to perfection
  • Forbidden desire / denial arc — Killien could teach a masterclass in self-deception
  • Found family / the two of them against the world — they raised each other, and it shows
  • Morally grey characters — both brothers kill, and Thorne doesn’t soften it
  • MMM slow burn — Jacob is here, he matters, and the promise of all three together is clearly the destination
  • Forced proximity — they share a bedroom even though there’s a free room, because of course they do
  • Vampire mythology done differently — blood sharing as intimacy, glowing eyes, turning sadistic post-transformation
  • Touch-starved — Killien especially; the scene where Jacob holds him up against the wall outside and he almost leans back into it is devastating
  • Jealousy spiral — Killien doesn’t know if he’s jealous of Damien or Jacob. Neither does he.
  • One bed (emotional edition) — they never actually share the one bed, but the tension is there every single night

What Worked, What Didn’t, and the Reading Vibes

What really worked: the dual POV. Damien’s chapters are sharp, frenetic, and wickedly funny — he’s fully aware of what he’s doing and enjoys every second of it. Killien’s chapters are slower, more internal, and frankly more painful to read. Thorne uses the contrast brilliantly. You never feel like you’re reading the same voice twice.

What also worked: Jacob. He is not a prop or a complication. He is a fully fleshed-out person with his own story of a maker who abandoned him, his own careful emotional intelligence, and his own growing feelings that complicate everything beautifully. The scene on the balcony where he tells Killien about his past is one of the best in the book.

What didn’t quite land for me: the pacing in the middle section drags slightly. There are a few chapters between the blood-drinking scene and the party sequence that feel like they’re running in place — a lot of internal monologue covering the same emotional ground. Nothing that broke the experience, but I noticed it.

Overall reading vibes: dark bar, cold beer, neon signs, someone playing Bad Omens in the background. Messy and hot and occasionally tender in a way that sneaks up on you.

Final Thoughts

For a debut novel, Deviate Me is remarkable. Daphne Thorne has a confident voice, a genuine gift for slow-burn tension, and an instinct for when to let a scene breathe versus when to push. I tore through this in two sittings and immediately started cataloguing everyone I knew who would lose their mind over it.

Is it perfect? No. Is it the kind of book you think about for days after? Absolutely yes.

Book two cannot come fast enough.

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