Theo Sinclair lives his life in perfect harmony—controlled, careful, and tightly wound—until his best friend’s brother moves in and wrecks the rhythm.

Theo has everything he needs: a stable job in IT, and singing in his all-gay a cappella group Rough Harmony. He doesn’t do chaos, feelings, or anything that threatens the control he’s fought to rebuild. That includes forbidden boys with pretty eyes.

When Cameron Walters gets evicted, his brother innocently suggests he crashes on Theo’s couch. Theo—the guy Cameron’s been crushing on since he was sixteen, which is probably why Cameron has never been with a guy, and why he says yes in a heartbeat.

Okay, it’s not Theo’s bed, but it’s a start.

Stolen glances. Loaded silences. And Theo, unravelling.

Theo is terrified of making another mistake. Falling for your best friend’s brother? That’s not just messy, it’s a betrayal.

An explosive kiss sends them reeling. Theo needs to decide: does he run, or risk everything for a chance at harmony?

Theo doesn’t think he’s into kink—or letting go. Cameron is about to challenge both.

Control doesn’t always mean captivity.

Sometimes, for a man who’s held on too tight for too long, surrender is freedom.

The kind of control that makes you beg for more.

High heat. Consent. Trust. All the feels.

Best friend’s brother • Forced proximity • Friends to lovers

Control freak learning surrender • Consensual power exchange that changes everything.

First love • Found family • High-heat MM romance

This is the beginning of Rough Harmony, and once it starts, you won’t want it to stop.