New Adult & Contemporary Romance

Bad boys, morally gray men, and the women who see through them.

M. Mullin writes spicy, character-driven romance about flawed people falling hard. Her second novel, Tragic Kingdom, is out now.

The books

Two novels, so far
Instant Crush book cover
Debut novel

Instant Crush

2024 · Friends to lovers · College romance

Quiet freshman Rey Everly never planned to fall for her best friend — campus artist and self-styled bad boy River Garrison. But one blurred line is all it takes to turn a safe friendship into something neither of them can walk back from.

Tragic Kingdom book cover
New release

Tragic Kingdom

2026 · Enemies to lovers · Contemporary romance

Isolde and Arthur meet as rivals in the world of architecture, where sharp banter barely hides real vulnerability. He's morally gray with a past he'd rather not explain — and she's done letting people underestimate her.

M. Mullin logo
About

Grounded, flawed characters. Plenty of heat.

M. Mullin writes new adult and contemporary romance built around realistic, flawed characters — bad-boy and morally gray heroes paired with the heroines who see past the front they put up. Expect real angst alongside real steam.

Her debut, Instant Crush, arrived in 2024 as a college friends-to-lovers story. Tragic Kingdom followed in 2026, trading the campus for the world of architecture with an enemies-to-lovers pairing.

Away from the page, she's usually hiking, out on a family walk, or several chapters deep into someone else's book world.

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Occasional notes on new writing, events, and early excerpts. No spam, just books.