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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Does it matter if you date someone your sibling has?

74 replies

PassingStranger · 12/04/2025 16:41

Not happened to me, but would it bother you if say you dated the same person as a brother or sister of yours did?
It seems the 2 Beckham brothers Dorklyn and Romeo aren't speaking because Romeo is dating an ex of Dorklyns?

OP posts:
Tandora · 12/04/2025 20:21

Jennalong · 12/04/2025 20:19

@Tandora

Boy meets girl , they start dating .
Boys dad meets girls mum , dad & mum leave their partners and marry.
Boy / girl marry . So her mum ( girls mum ) is married to boys dad so her father in law .

😱😱. Ok that is seriously creepy 🤣🤣🤣

AgnesX · 12/04/2025 20:22

Oh heavens, no. A humongous no-no

seven201 · 12/04/2025 20:45

When I was around 17 I went on some dates with one bloke, then later his brother. Didn't sleep with either! I do cringe at the memory now!

Pennyswimsplash · 12/04/2025 21:19

It’s wrong, I wouldn’t get with a friends ex never mind a siblings ex no matter how brief or long ago the relationship was. No boundaries ☹️

ItGhoul · 12/04/2025 21:27

If it was someone a sibling just went out with for a few months at 17 or something, and they were now 40, it might not be an issue I suppose.

But if was a serious and/or recent relationship - especially if it ended badly - I’d certainly think it was a strange choice.

My sister and I have such incredibly different taste in men that the idea of dating anyone she’d even look twice at is making me cringe!

GeorgianaM · 12/04/2025 21:33

Robert Plant, lead singer of Led Zepellin married Maureen Wilson on 9 November 1968. The couple had three children. One child aged five died.

They divorced in 1983.

In 1991, Robert Plant and Shirley Wilson (sister of ex-wife Maureen) had a son!

So the children are half siblings and cousins!

wafflesmgee · 12/04/2025 21:35

A bit ew but I’d get over it if they made my sibling happy

BCBird · 12/04/2025 21:36

Could cope if they hadn't had sex I suppose, just had a couple of dates. . If they had then absolutely not. Who calls their child Dorklyn? Sorry if anyone apart from.the Beckhams has

IbizaToTheNorfolkBroads · 12/04/2025 23:01

My sister would largely only go out with people who were going out with me, but she’s not a nice person.

Ohisitjustme · 12/04/2025 23:13

I knew a family where the oldest brother was going out with a woman (both in their late 20s). He was abusive to her. Younger brother was in love with the woman, everyone knew it and it was openly talked about in the family. Eventually the first couple broke up and she ended up with the kind brother who loved her. I lost track of them but I think they ended up having kids together but later still it didn't work out.

Nanny0gg · 12/04/2025 23:15

Pedallleur · 12/04/2025 16:44

Keeping it in the family. Bryan Ferry married his sons ex girlfriend (later divorced her)

EWW Eww eww

Nanny0gg · 12/04/2025 23:22

mathanxiety · 12/04/2025 16:46

If it was acceptable for the ladies Spencer, it surely should be fine for the Beckham plebs.

There's a serious ick factor here - does the first Beckham think women he has dated are somehow his property?

I bet the eldest Spencer didn't sleep with Prince Charles

Nanny0gg · 12/04/2025 23:25

Didshejustsaythatoutloud · 12/04/2025 19:40

Yeah, what does that mean?😂

Seriously?

His name is Brooklyn and he's a dork?

I can't believe so many didn't get this!

Beamur · 13/04/2025 09:13

Bit gross.

Ellmau · 13/04/2025 23:09

Queen Mary, wife of George V, was previously engaged to his older brother who died.

mondaytosunday · 13/04/2025 23:14

It’s against the code! If never date a man my sister had. Or my best friend etc.

ilovepixie · 14/04/2025 01:07

Why call him Dorklyn. What’s he ever done to you? He can’t help being born into a rich family. He’s just trying to make his way in life same as the rest of us.

category12 · 14/04/2025 12:29

ilovepixie · 14/04/2025 01:07

Why call him Dorklyn. What’s he ever done to you? He can’t help being born into a rich family. He’s just trying to make his way in life same as the rest of us.

Not exactly the same as the vast majority of us, as a nepo-baby.

I'm sure he has his challenges as a human but I doubt being called Dorklyn (which isn't particularly harsh, clever or piercing) on mumsnet is of particular moment to him.

Notmyrealname22 · 14/04/2025 12:48

girljulian · 12/04/2025 16:46

Unrelated but Dorklyn is the stupidest name ever. DORKLYN.

Ha ha, you got me with Dorklyn too.

and, eww! I have never been attracted to my sister’s partners. I met someone who I was later told married her ex-boyfriend’s brother, so weird! What are family gatherings like?

Anonym00se · 14/04/2025 12:54

My exH had an affair with my then best friend. After we split he went out with her sister and eventually married their third sister. It wouldn’t surprise me if he’d shagged their mother too.

5128gap · 14/04/2025 13:22

Depends on the circumstances. Huge difference between amicable split of a relatively casual relationship, and acrimonious separation after a serious one, and/or when bringing the ex back into your siblings world by dating them would cause them pain.

Hastentoadd · 14/04/2025 13:39

PassingStranger · 12/04/2025 16:41

Not happened to me, but would it bother you if say you dated the same person as a brother or sister of yours did?
It seems the 2 Beckham brothers Dorklyn and Romeo aren't speaking because Romeo is dating an ex of Dorklyns?

Wouldn’t consider it but know someone who did

RCCola115 · 30/05/2025 13:13

This reply has been deleted

This has been deleted by MNHQ for breaking our Talk Guidelines.

FishPie2 · 30/05/2025 14:09

category12 · 14/04/2025 12:29

Not exactly the same as the vast majority of us, as a nepo-baby.

I'm sure he has his challenges as a human but I doubt being called Dorklyn (which isn't particularly harsh, clever or piercing) on mumsnet is of particular moment to him.

His nickname all over Social Media is Dorklyn not just MN.
He has been called this for a number of years.

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