Ethan, freshly eighteen, sits cross-legged on his bed, fiddling with a shiny new keychain his best friend gave him. He glances at his phone, heart pounding in his chest as he reads the last message from Mason. "Ready for your big day, man? Got something special for you tonight," "You’re making me nervous. What is it?"

Mason grins mischievously, swinging the pouch between them. "Dude, you said you wanted to try something new on your birthday. I figured, why not take it a step further?" "What’s in the bag?" "A challenge. Trust me, you won’t forget it."

Ethan stares at the object, realization dawning on his face. "It’s a chastity cage. You said you wanted to test your limits, so… tonight’s the night," "Are you serious? I mean… I guess I did say I wanted to try something wild," "You in?" "Yeah. Let’s do it."

"Just relax. I’ll help if you need it," Ethan takes a deep breath, steadying his trembling hands as he prepares for the challenge. His heart races, excitement and fear mingling in his chest. He fits the device, locking it with a click that seems to echo louder than it should.

"It’s weird, but kind of thrilling," "Guess you’re officially locked in for adulthood," They laugh together, the tension dissolving into easy conversation as they celebrate Ethan’s eighteenth with pizza and old movies.

"Here’s to new beginnings… and new boundaries," Ethan smiles, feeling both vulnerable and empowered, ready to face whatever comes next.