Big sisters are often expected to watch their baby siblings.

This woman lives with her dad, stepmom, and new baby sister.

Her stepmom kept asking her to babysit even when she’s busy, but she doesn’t want to babysit all the time.

Read the whole story below.

AITA for refusing to babysit my stepmom’s baby even though I’m living in her house?

I (18F) just graduated high school.

I am taking a gap year before college.

I live with my dad (45M) and my stepmom (36F).

They had a baby three months ago.

This woman’s stepmom has been asking her to watch her baby sister for free.

I work part-time, and contribute to my own expenses, but I don’t pay rent or anything.

Ever since the baby was born, my stepmom has been asking me to “help out” more.

This has slowly turned into her just expecting me to babysit for free.

That’s every time she wants a break.

It’s gotten to be too much.

At first, I didn’t mind watching my half-sister here and there, but it’s gotten ridiculous.

She’ll call me home from hanging out with my friends.

She’ll wake me up early on my days off.

Or just hand me the baby without asking first.

She told her stepmom to ask first before leaving the baby with her.

The other day, she left the house without telling me and left me alone with the baby.

I had plans to go out, but I obviously couldn’t just leave, so I was forced to stay home.

When she got back, I told her she needed to ask me first and not assume I’ll be available.

Her stepmom got upset.

She got really upset and said:

“You live here for free. The least you can do is help.”

I told her I never agreed to be a free babysitter just because I live here. I said that if they wanted a full-time nanny, they should hire one.

My dad took her side. He said that since I’m part of the family, I should be helping more.

She told them she’d move out.

I told them I’d start looking for other places to stay, especially if they keep pushing this on me.

Now, they’re both mad at me, and my dad says I’m being ungrateful.

AITA for refusing to babysit even though I live in their house rent-free?

She shouldn’t be expected to babysit all the time.

Let’s find out what others have to say about this on Reddit.

This user advises to look for other living arrangements.

Here’s a similar thought from this person.

That’s dangerous, says this person.

This person shares their personal thoughts.

Finally, short and simple.

Just because she lives with them doesn’t mean she gets to be an instant babysitter.

If you enjoyed that story, read this one about a mom who was forced to bring her three kids with her to apply for government benefits, but ended up getting the job of her dreams.