My little sister moved in with us after losing her job – what I caught her doing in my kitchen made my stomach drop

The Sun

10-07-2025

A WOMAN ran to Tiktok begging for help after discovering her husband had cheating on her with her little sister.
After finding out her little sister had gone through a difficult break-up and lost her job, she let her come and stay with her and her husband, trusting her sister completely.
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But that trust was shattered after she walked into the kitchen one afternoon and saw something that left her sick to her stomach.
Sharing her story with TikToker @Mais.jmh, the woman revealed she had no second thoughts about letting her little sister stay with her and her husband until she got back on her feet.
At first, things were great. They all got along, and the house felt harmonious.
But a few months in, something shifted.
Her husband suddenly started coming home for lunch more often, sometimes even working from home with no warning.
Meanwhile, her sister began wearing makeup around the house and lounging in skimpy crop tops.
When questioned, she claimed it was about rebuilding her self-esteem after her breakup.
'I really trusted them,' the woman said.
'So I just brushed it off.'
That trust, however, was about to shatter.
I found out my boyfriend was cheating on me through our Ring doorbell
One day, she came home from work earlier than expected and what she walked into stopped her in her tracks.
She heard laughter in the kitchen. Quiet, intimate laughter.
When she crept closer, she saw her sister sitting on the kitchen counter, legs swinging casually and her husband standing between them, spoon-feeding her something.
She knew it was 'nothing technically inappropriate" but said the way they were looking at each other made her stomach drop.
When she confronted them, her sister leapt off the counter like she'd been caught red-handed.
Her husband mumbled something about trying out a new recipe.
But the vibes were off and she knew it.
Later that night, determined to uncover the truth, she scoured everything - joint bank statements, receipts, even home security footage.
And that's when she found it.
A 17-second clip from their hallway camera, dated the same weekend she'd been away on a work retreat.
In the video, her sister steps out of the guest room wearing nothing but a bathrobe.
Seconds later, her husband emerges shirtless, in just his boxers. Then, he leans in and kisses her.
She couldn't breath claiming her "hands were shaking".
It's been over a week since she saw the footage but hasn't confronted them yet.
She says she wants to make sure her sister and husband pay for what they did.
The TikTok has gone viral, racking up thousands of comments from viewers urging her to get revenge smartly.
One wrote: 'Run this by a solicitor first, move all your joint funds, then play that video at a family gathering. Make them feel what you felt.'
Another added: 'Change the locks, pack their things, and donate it all to charity. Then move on like the queen you are.'
As for the woman, she's lying low but not backing down.
Four red flags your partner is cheating
Private Investigator Aaron Bond from BondRees revealed four warning signs your partner might be cheating.
They start to take their phone everywhere with them
In close relationships, it's normal to know each other's passwords and use each other's phones, if their phone habits change then they may be hiding something.
Aaron says: "If your partner starts changing their passwords, starts taking their phone everywhere with them, even around the house or they become defensive when you ask to use their phone it could be a sign of them not being faithful."
"You should also look at how they place their phone down when not in use. If they face the phone with the screen facing down, then they could be hiding something."
They start telling you less about their day
When partners cheat they can start to avoid you, this could be down to them feeling guilty or because it makes it easier for them to lie to you.
"If you feel like your partner has suddenly begun to avoid you and they don't want to do things with you any more or they stop telling you about their day then this is another red flag."
"Partners often avoid their spouses or tell them less about their day because cheating can be tough, remembering all of your lies is impossible and it's an easy way to get caught out," says Aaron.
Their libido changes
Your partner's libido can change for a range of reasons so it may not be a sure sign of cheating but it can be a red flag according to Aaron.
Aaron says: "Cheaters often have less sex at home because they are cheating, but on occasions, they may also have more sex at home, this is because they feel guilty and use this increase in sex to hide their cheating. You may also find that your partner will start to introduce new things into your sex life that weren't there before."
They become negative towards you
Cheaters know that cheating is wrong and to them, it will feel good, this can cause tension and anxiety within themselves which they will need to justify.
"To get rid of the tension they feel inside they will try to convince themselves that you are the problem and they will become critical of you out of nowhere. Maybe you haven't walked the dog that day, put the dishes away or read a book to your children before bedtime. A small problem like this can now feel like a big deal and if you experience this your partner could be cheating," warns Aaron.