My Husband and His Sister Decided I Should Babysit Her Kids for Free While They Went on Vacation

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When Mandy asked me to watch her kids for a few hours, I didn’t hesitate. I figured it’d be a simple favor, no big deal. But those few hours turned into something I never expected — a shocking phone call that turned my life upside down. My husband, Ryan, and his sister were already on a plane to Mexico. No heads-up. No warning. Just me, two kids, and a week-long betrayal I never agreed to.

It all began around midday. I was working from home, typing up some data on one of my spreadsheets when my phone chimed. I looked at the screen and saw my sister-in-law’s name. She had sent me a message that made me freeze.

“Hey! Emergency. Can you grab the kids from school today? Just until I finish something. Thank you!!”

Emergency?

My heart skipped a beat, and my mind started racing. Was one of the kids sick? Did something happen to Mandy? Was she in trouble?

I quickly texted back, trying to keep calm: “Of course! Everything okay?”

Her reply came almost instantly. “Yeah, just swamped. You’re a lifesaver!”

A sigh of relief washed over me. Nothing major, just busy. Mandy’s two kids — Ellie, who was six, and Jake, a wild three-year-old — were sweet. A handful, yes, but sweet. I work from home, so my afternoon was light. Grabbing them from school, giving them snacks, and hanging out until Mandy picked them up after dinner? I could handle that.

At first, I actually thought it might be fun. I settled the kids on the couch with a Ghibli movie and their snacks, while I finished up some work. Everything seemed fine, but by 7 p.m., the fun had worn off.

Ellie was sprawled on the living room floor, coloring with such intensity that I felt a little nervous. Jake, on the other hand, was in the middle of a full-blown toddler meltdown.

His tiny fists pounded the floor, tears streaming down his cheeks as he screamed, “I WANT THE BLUE CRAYON!”

There was no blue crayon. Not anymore. He’d snapped it in half an hour ago.

I sighed, rubbing my temples. “Jake, buddy, it’s just a crayon. We have other colors.”

“NOOOOO!” he wailed, throwing himself onto the carpet like some tragic Victorian child. “I want the blue one!”

Ellie, not even looking up from her coloring, muttered, “Just give him the broken one. He doesn’t care.”

I shot her a look. “That’s not how tantrums work.”

Meanwhile, Mandy? Nothing. Radio silence. No texts. No calls. No nothing.

I tried to stay calm. Maybe she’d gotten caught up in whatever “emergency” had pushed her to ask me to pick up the kids in the first place. Maybe she lost track of time. Or, maybe her phone had died.

By 8 p.m., I was starting to lose patience. I paced back and forth, phone in hand, staring at the screen, hoping for some kind of response.

I sent a text: “Hey! Just checking in. Kids are getting sleepy.”

Then, thirty minutes later: “Hey, you coming soon?”

Still nothing.

At my wit’s end, I called Ryan. He picked up on the third ring. But before I could say anything, I heard the unmistakable sound of airport announcements blaring in the background.

“Ryan, why are you at the airport? Never mind, you can tell me later. Have you heard from Mandy? She asked me to pick up the kids, but now she isn’t answering my texts.”

“Oh, hey,” Ryan said, as if I’d just asked him if he was picking up milk from the store. “Yeah, so about that… Mandy’s with me. We’re just about to board our flight.”

“Excuse me? Your flight?” I asked, stunned.

“Yeah, we’re headed to Mexico!” he said, sounding too cheerful. “You know, Mandy really needed a break. We’ll be back in a week. Thanks for watching the kids! You’re amazing. Love you!”

And just like that, he hung up.

I stood there in shock, phone still pressed to my ear. A whole week. Not a few hours, not even a day. A whole week! They hadn’t asked me. They hadn’t even told me!

If I hadn’t called, when were they planning on telling me? Were they going to send me a postcard from Cancun? Or maybe tag me on a post with a picture of them enjoying a margarita in Cozumel?

I collapsed into a chair, my mind spinning as the full weight of their betrayal hit me. They’d planned their trip, packed their bags, and left the country without a single word to me.

Ellie looked up from her coloring. “Where’s Mommy?”

“She’s… gone away for a few days with Uncle Ryan,” I muttered, trying to keep my cool. “You two will be staying with me until she comes home.”

Ellie scrunched her face. “But she didn’t say good-bye…”

Jake sniffled, then wailed, “I want Mommy. I want to go home!”

And just like that, he burst into furious sobs, his tiny body shaking in my arms.

I sighed, picked him up, but quickly set him back down when he flailed at me with his little fists.

Ellie started crying too, and for what felt like an eternity, we all just sat there in the living room, feeling sorry for ourselves.

The next few days were a blur of chaos.

Ellie and Jake were good kids, but they were still kids. And they were just as thrown by this whole situation as I was.

Full-time, no-warning, unpaid childcare while juggling my job? Not exactly my dream job.

Mornings were the worst. Getting Ellie and Jake out the door for school was like trying to herd caffeinated squirrels.

Jake fought me every single morning when I tried to buckle him into his car seat. He twisted, kicked, and screamed like I was strapping him into a medieval torture device.

Ellie, on the other hand, insisted on wearing her glitter-covered princess dress to school.

When I told her no, she threw herself on the floor in a tantrum that would’ve earned her an Oscar nomination.

At home, the noise was nonstop.

Sibling fights over who got the blue cup. Screaming matches over who touched whose toy. At one point, I caught Jake trying to flush Ellie’s Barbie down the toilet while she shrieked from the hallway, “YOU’RE A VILLAIN!”

And the messes. Everywhere. Cereal dumped on the floor like confetti. Sticky handprints on everything. A couch cushion mysteriously missing.

The laundry? I was drowning in it. It piled up like a mountain range, taunting me every time I passed.

Meanwhile, Ryan and Mandy were living it up, showing off their vacation on social media.

Their Instagram stories were a never-ending reel of luxury.

Mandy lounging by the pool, a drink in her hand. Ryan grinning at the camera with a plate of gourmet food. Stylish beach selfies. Spa days. And every post seemed to mock me a little more.

And the captions? Those were like salt in the wound.

“Finally relaxing! ☀️🍹”

“Much-needed escape! 😍🌴”

“Zero stress!!!”

Zero stress… that must be nice.

With every post, my resentment festered. By day two, I snapped.

It was lunchtime, and I was barely holding it together when I came up with an idea.

Jake was in his high chair, screaming at the top of his lungs and throwing macaroni and cheese across the room like a tiny, enraged catapult. Ellie was at the table, shrieking back at him, her face scrunched in fury.

“STOP THROWING FOOD!” I yelled, my voice cracking.

Jake responded by grabbing a fistful of mac and cheese and hurling it straight at me.

I looked down at myself. Cheese sauce splattered on my sweater, noodles stuck to me like bad art.

The kitchen was a disaster zone. Plates knocked over. Spilled juice pooling on the counter. Crumbs everywhere.

And something inside me snapped.

I stood there, sticky and exhausted, my ears ringing from the noise. And then a thought hit me — a petty, beautiful thought.

I grabbed my phone and hit record.

On day four, Ryan and Mandy FaceTimed me from the beach. They were furious.

“WHAT DID YOU DO?!” Ryan yelled. “TAKE IT DOWN! RIGHT NOW!”

Mandy, nearly in tears, added, “Seriously! Everyone’s commenting on our posts! People are calling me a bad mom! Fix it! Delete it NOW!”

I took a deep breath and smiled.

After the mac and cheese incident, I had recorded every disastrous minute of my surprise babysitting gig. I edited it into a hilarious montage, interspersed with Ryan and Mandy’s vacation clips.

Then, I posted it to my private Instagram, just for friends and family, with the caption: When your husband and his sister leave the country and forget to mention you’re now her free nanny. Worst surprise ever.

The post exploded.

Comments poured in:

“Wait… they left YOU with the kids? For a week? Without asking??”

“Why didn’t they hire a sitter?”

“Why are they vacationing without you?”

Ryan and Mandy were getting roasted in the comments section of their vacation posts by family and friends who’d seen the video.

“Oh, you mean the video?” I said, with a grin. “No problem. I’ll take it down right after you book a flight home to relieve me. Otherwise, I’m just getting started.”

They stammered, sputtered, and then hung up. They had no choice but to come home early.

When they arrived, I handed Mandy her kids, packed my things, and moved out to stay with a friend.

Ryan tried to backtrack. “Come on, babe. It was just a misunderstanding!”

I delivered the final blow. “No. A misunderstanding is forgetting to grab milk. This? This was a betrayal.”

The video? Still up. The comments? Still rolling. Me? Sleeping better than I had in years, with no more surprise babysitting shifts in sight.