One innocent comment. That’s all it took to make a billionaire explode at me in front of his entire team.

In my defense, I didn’t know the grease-stained mechanic I’d been flirting with was actually the owner of King Racing. Or that the massive guy chasing his adorable daughter around the garage was his head of security—not his husband.

My “daddy duty” joke? Yeah, it hit a nerve I didn’t know existed.

Now I’m mortified, banished from the track, and trying to forget those intense dark eyes that made me feel seen for the first time in years.

Then his assistant shows up at my clinic with questions that sound suspiciously like a dating application.

Turns out, the grumpy billionaire can’t stop thinking about me either.

Aiden King is controlling, overprotective, and throws money at problems like that’s a love language. He’s also the most devoted single father I’ve ever met, and when he looks at me, I forget why this is a terrible idea.

But I’m just a nurse from Charlotte with a car held together by hope and prayers.

He’s a billionaire with an ex-wife who wants to destroy him—and anyone close to him.

I should run.

So why do I keep getting closer?

Grumpy/Sunshine Single Dad Billionaire Romance He Falls First

A steamy standalone romance within the Fast Lane Series with a guaranteed happily ever after.