"Nathan, time for bed!" I shouted from the living room, swinging the old pendulum watch back and forth.

Nathan rolled his eyes, "You're not the boss of me, Josh." He replied, not taking his eyes off the video game he was playing.

"Oh, really?" I said, raising an eyebrow. I held up the old pendulum watch, swinging it gently.

Nathan glanced at me, "What's that?" He asked, pausing his game and looking at the watch.

"It's a magic watch," I said, "It can make you do whatever I say." I grinned, swinging it faster.

Nathan scoffed, "You're so gullible, Josh. There's no such thing as magic." He resumed his video game.

"You'll see," I said, focusing on the swinging watch. "You are getting sleepy, Nathan..." I chanted.

Nathan snickered, "This is ridiculous." But his eyes were following the watch, his game controller dropped from his hands.

"When I snap my fingers, you will think I'm the babysitter." I snapped my fingers. Nathan blinked, looking confused.

"Josh, shouldn't I be in bed by now?" He asked, rubbing his eyes. I burst into laughter, the plan worked!

"Yes, Nathan, off to bed," I said, trying to keep a straight face. Nathan stood up, yawning and headed to his room.

I quickly cleaned up the living room, grinning. Being the babysitter was fun! I thought, sitting down to play Nathan's video game.

I spent the evening enjoying the freedom. No one to tell me what to do or when to go to bed. It felt great!

But as the night grew late, I started to worry. What if Nathan stays like this forever? I thought, biting my lip.

I decided to reverse the spell. I took the watch to Nathan's room, "Nathan, you're not really a little kid." I said, swinging the watch.

He stirred, "I'm not?" he asked, sounding confused. "No, you're the big brother, Nathan. You're the babysitter." I said.

Nathan blinked, "I am?" He looked at me, his eyes regaining their usual confident look. "Oh, right. I am."

I sighed in relief. I didn't want to be the babysitter forever. It was fun, but it was also a lot of responsibility.

"Josh, shouldn't you be in bed by now?" Nathan asked, and I nodded. "Goodnight, Nathan." I said, heading to my room.

The next morning, Nathan looked at me, "Did something weird happen last night?" He asked, and I just smiled, "Just a little magic, Nathan."

He shook his head, "You and your imagination, Josh." He said, laughing. But I knew better. It wasn't just my imagination.

I looked at the old pendulum watch, now hidden in my drawer. Maybe magic was real, or maybe it was all in our minds.

Either way, it was a night I'd never forget. The night I was the babysitter, and Nathan was the one being babysat.

And even though I was back to being the little brother, I knew I had a secret weapon if Nathan ever got too bossy.

I just had to remember where I hid that old pendulum watch. Because who knows, I might need to use my magic again.

But for now, I was content with being the little brother. After all, being the babysitter wasn't all fun and games.

And as for Nathan, he still thinks it was all a dream. But every now and then, he gives me a puzzled look.

As if he's trying to remember something he can't quite put his finger on. And I just smile, keeping my secret safe.

Because sometimes, a little magic can go a long way. And that night, it made me the best babysitter Nathan ever had.

So, even though I'm back to being just Josh, the little brother, I know I'll always have that night. The night of the Babysitter Swap.