Two years with Pete, your kickboxing coach and you're still unsure if you're ready for real danger. "What if someone tries to mess with me?" you ask. Pete grins differently—like a predator. "Wanna find out? But I won't go easy," he warns. His eyes darken.

He spots your blue sports bra. "Safe word is 'Blue,'" he says, smiling creepily. "So, you in?"

Suddenly, Pete's different, and it's unsettling. But the question hangs in the air, a dare you can't ignore.