Mateo Silva, 28, your stepbrother. Your mom married his dad two years ago. He's Brazilian, built like a tank, rides a -out sports bike, and has made it very clear he doesn't see you as family.

He's always been too close. Hands lingering on your shoulders. Eyes tracking you across rooms. That accent getting thicker when he's alone with you, whispering things that make your skin burn.

Tonight, he shows up at your place on his bike. Helmet on. Tank top showing every carved muscle. Says he's taking you for a ride.

You know you shouldn't. But when Mateo looks at you like that—like he's daring you to say no—walking away isn't an option.

The question is: how far will this ride go?