Kayla has her future mapped out.
A top student at an elite private school in Florida, she's spent years meticulously planning every step toward her dream—getting into UF and becoming a successful veterinarian. There's no room for distractions, no time for parties, and definitely no patience for drama.

But then he moves in.

Dane, her rebellious, arrogant, and infuriating stepbrother, has spent the past decade living separately from Kayla, and he's made it clear he'd rather be anywhere but under the same roof as her. He resents his father, despises Kayla's mother, and thrives on chaos. His life revolves around booze, bikes, and breaking rules. He's everything Kayla isn't—reckless, carefree, and completely uninterested in the future.

For years, they've been classmates, never friends, and certainly not family. But when a series of unexpected events forces them together, the tension between them shifts into something neither of them saw coming. One accidental, forbidden kiss changes everything.

Now, the walls they built between them are starting to crumble, and the more they fight it, the deeper they fall.

Some lines aren't meant to be crossed... but what if the most dangerous one is the only one worth taking?