August 12, 2026 at 9:15 am

She Gave Her Sibling Cheap Rent—Now He Refuses to Pay a Single Cent for Groceries or Utilities

by Benjamin Cottrell

stressed woman looking at five dollar bill

Pexels/Reddit

Family discounts on rent usually come from a good place, but when they’re not balanced, they open the door to some serious resentment.

One woman has been cooking two meals a day for her sister, who lives in their spare room for well below market rate, doing her laundry, and never batting an eye at her raiding the fridge. All of that felt fine for a while.

But what really didn’t sit right was watching her sister replace her own alcohol and juice, while never once offering to restock the groceries she was eating through daily.

She knows the rent is already a good deal. She just can’t shake the feeling that eating everything and buying nothing might be pushing it.

Keep reading for the full story.

AITAH for getting annoyed my sister never offers to buy groceries?

My sister lives with me and my husband and pays £500 a month for our spare room.

We let her live with us mainly to help her out, because rooms around here are expensive, around £800-£1000, and renting a flat on her own would be extortionate.

This woman does a lot for the household — and her sister definitely benefits from this.

I cook pretty much twice a day, and she eats whatever I cook, plus takes the same food to work for her lunch.

She also eats and drinks whatever is in our fridge, which honestly I don’t normally mind.

For the most part, she doesn’t mind working hard, but lately her sister’s lack of contribution has started to grate on her nerves.

As I WFH most days, I also don’t mind cleaning the whole flat, including her laundry when I do ours as well.

What has started annoying me is that she never really offers to buy groceries or replace things.

She’ll sometimes buy her own juice or alcohol, but if she drinks our alcohol or soft drinks, she won’t think to replace them or buy some next time.

She clarifies what she expects from her sister, which she thinks is pretty reasonable.

I don’t expect her to pay for half our shopping or anything, especially as she already pays £500 for the room.

I just feel like if you’re eating breakfast and dinner, taking lunch to work, and helping yourself to everything in the fridge, surely you’d occasionally offer to buy some groceries?

On the other hand, she worries how her sister would react if she confronted her.

But then I feel bad asking, because she’s my sister and we agreed on £500 rent.

I don’t want to make it seem like I’m suddenly asking her for more money.

AITAH for being annoyed by this?

It’s pretty reasonable to be fed up with this kind of behavior.

What did Reddit have to say?

It’s high time her sister start chipping in.

Screenshot 2026 08 09 at 1.05.47 PM She Gave Her Sibling Cheap Rent—Now He Refuses to Pay a Single Cent for Groceries or Utilities

Her sister needs to understand just how much she’s taking without giving anything back in return.

Screenshot 2026 08 09 at 1.06.50 PM She Gave Her Sibling Cheap Rent—Now He Refuses to Pay a Single Cent for Groceries or Utilities

This commenter thinks there’s a way to make it not so personal.

Screenshot 2026 08 09 at 1.07.16 PM She Gave Her Sibling Cheap Rent—Now He Refuses to Pay a Single Cent for Groceries or Utilities

If you enjoyed this story, check out this post about a teenager who wants to work, but his mom thinks working past 8pm is too late for high school.

Even if her sister did start contributing to groceries, she’s still getting a better deal than if she was living on her own.

Screenshot 2026 08 09 at 1.08.31 PM She Gave Her Sibling Cheap Rent—Now He Refuses to Pay a Single Cent for Groceries or Utilities

Discounted rent covers a room. It doesn’t automatically cover three meals a day plus unlimited fridge access, even when the person eating them happens to be family.

There’s a difference between generosity and being taken for granted, and the fact that her sister replaces her own drinks but never the household’s says a lot. She clearly understands the concept of restocking what you use. She’s just choosing not to apply it to anyone else.

Feeling awkward about bringing up groceries after agreeing on a flat rent number is understandable. But rent covering the room was never actually the same agreement as rent covering unlimited groceries too.

Cheap rent and free groceries were never intended to be a package deal.

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Benjamin Cottrell | Assistant Editor, Internet Culture

Benjamin Cottrell is an Assistant Editor and contributing writer at TwistedSifter, specializing in internet culture, viral social dynamics, and the moral complexities of online communities. He brings a highly analytical, editorial voice to his reporting on workplace conflicts, malicious compliance, and interpersonal drama, with a specific focus on nuanced stories that lack an obvious villain.

As a published author of rhetorical criticism, Benjamin leverages his academic background in human communication to dissect and elevate viral social media threads. Instead of simply summarizing events, he provides readers with balanced, deep-dive commentary into why the internet reacts the way it does. In addition to his cultural reporting, he is an experienced fine art photography essayist and video game reviewer.

When he isn’t analyzing the latest viral debates, Benjamin is usually chipping away at his extensive video game backlog, hunting down the best new restaurants, or out exploring the city with a camera in hand.

Connect with Benjamin on Instagram and read more of his essays on Substack.