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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Shocked at DFs revelation

174 replies

Stepsisterfromhell · 02/03/2026 00:56

My DF is an advanced age. He has recently confided to me that my stepsister tried to seduce him years ago (she was an adult ofc) He never told anyone including his wife, my stepmother. He does not want anyone to know and has asked me not to tell anyone, The reason he told me is because he thinks she is trying to get him put in a care home so she can move in with her mother, He doesn’t trust her. WWYD?

YABU - you must l tell the rest of the family
YANBU - respect his wishes and keep quiet

OP posts:
mathanxiety · 02/03/2026 05:10

He should go to a solicitor privately and draw up a new will.

OtterlyAstounding · 02/03/2026 05:15

Statistically speaking, it's far more likely that a man in his 60's would sleaze onto his 40-something stepdaughter when she's vulnerable, than that she would try to seduce an old man who's been her stepfather since she was a small child. It just doesn't ring true. If so, that would explain why she doesn't like him.

Regardless, the best thing to do with what you know is to keep it to yourself and not spread rumours, while sorting out your DF's will, and making sure you have LPA.

thepariscrimefiles · 02/03/2026 05:37

Stepsisterfromhell · 02/03/2026 01:17

No, he said he never mentioned it to his wife. He did not want to cause waves. I am certain that he didn’t do anything to her but I worry that he misconstrued what she said or did. I don’t really want to accuse her of anything. But I can see that she is trying to oust him from his house.

Your dad obviously has capacity to make his own decisions so his wife and step-daughter can't just 'put him in a home'.

Is the house jointly owned by your dad and step-mother or did your dad move into his wife's house? What is their financial situation?

Tacohill · 02/03/2026 05:43

I’m confused as to why he told you - how is it relevant to him being put into care.

I would forget about what he said and not tell anyone.
Even if it was true then what will telling people achieve?
You’re going to be the one that gets the shit from everyone and it will cause drama for no reason.

It seems unlikely that it is true due to the timing that it has come out and sounds like he’s trying to manipulate you and pit you against her.

Has there always been tension between you and her?

Riverflow6 · 02/03/2026 05:45

OtterlyAstounding · 02/03/2026 05:15

Statistically speaking, it's far more likely that a man in his 60's would sleaze onto his 40-something stepdaughter when she's vulnerable, than that she would try to seduce an old man who's been her stepfather since she was a small child. It just doesn't ring true. If so, that would explain why she doesn't like him.

Regardless, the best thing to do with what you know is to keep it to yourself and not spread rumours, while sorting out your DF's will, and making sure you have LPA.

This

Matildatoldsuchdreadfullies · 02/03/2026 05:45

I would also seriously consider the possibility of dementia.

SweetnsourNZ · 02/03/2026 06:05

Darkladyofthesonnets · 02/03/2026 04:35

One of my husband's uncles when old became convinced that women everywhere were lusting after him. It was all in his mind. My very elderly FIL became convinced that black people were pursuing him (and his own wife was mixed race - he used to fall asleep in front of the television and became mixed up with what was real and what he was watching). One of my friends said that her mother in law - all of eighty odd and in ill health - said she had been made to strip naked and perform an erotic dance for the hospital doctors - again all in her mind. I would keep this confidence on the basis that it might entirely untrue and isn't relevant to the present circumstances.

Edited

This happens a lot with the elderly. It's not just dementia but many of the drugs they are on cause illusions. They are very real to them and that is why they can seem very convincing to the person they are talking to.

GoldbergVariations · 02/03/2026 06:11

One thing he could consider doing is swearing an affidavit to what he told you, not saying anything but depositing it with his solicitor. (You should also keep a copy). This might carry more weight in the future if required, should his mental faculties dull.

Would he be prepared to do this? (This in itself might be a useful test).

moose62 · 02/03/2026 06:14

I think the OP knows her DF and her SS and if she believes him that is all that matters.
If he is worried about being shipped off to a home or his SD replacing him in the house, that is what is important to him.

I would tell your siblings. It covers you in the future if people ask why you didn't. It covers you whatever the variation if the truth may be. But most importantly there are more people that know if his DW is trying to change his will etc. If he does want/need to make a new will, one of you can witness his signature instead of the step daughter!

Barleycat · 02/03/2026 06:15

I dont get all the responses here disbelieving what the father has said. Does I believe you only apply to women now?

katgab · 02/03/2026 06:15

If he has capacity they can’t just put him in a home, he has to consent. The bar for capacity is pretty high so it isn’t so easy. As for his revelation, I wouldn’t tell anyone. As others have said it might well be something that has come into his head and he’s become convinced of it. I certainly saw this with my elderly mum in the last years of her life. There was no diagnosis of dementia though I strongly suspected it. He can make a new will and LPA if needed, an appointment with a solicitor would be a good idea. They can keep the original in their will cabinet if he believes it could be lost.

SweetnsourNZ · 02/03/2026 06:16

What exactly are you worried about Op? Is your concern that this will come up one day? If it hasn't so far it will probably never be mentioned by SS.
Why are you so concerned about POA and wills etc. He has a wife so surely it is up to her to look after his well being. You can't just put someone in a home against their will, they have to qualify for a place.
As for the will, wouldn't the wife get everything and vice versa if he outlived her? Most married couples have mirror wills and it sounds like they have been married for years.

Wolfpa · 02/03/2026 06:21

How is your dad’s overall health? If he is of sound mind he can’t be forced into a care home without his consent.

sorting out POAs and Will’s seems like good financial planning especially if the will is so old they can’t even remember who wrote it. Would he be more comfortable if you took the lead on helping him apply?

ThatSourGobstopper · 02/03/2026 06:57

TyneTeas · 02/03/2026 01:04

I'd be more worried that at some point she will speak about this encounter with a different version

Yep. Raise a safeguarding alert and tell them exactly what you have said here.

Barnbrack · 02/03/2026 07:03

SeaShellsSanctuary1 · 02/03/2026 05:04

You may also want to consider that her version of events may be the truth

It does read a bit as 'getting his version out there so it muddies the water when she suddenly makes allegations either from childhood or from when she was 40'

Barnbrack · 02/03/2026 07:05

Barleycat · 02/03/2026 06:15

I dont get all the responses here disbelieving what the father has said. Does I believe you only apply to women now?

It's not women so much as the balance of power, he is the one who was like a parent to the girl, she's been painted as a bit of a fantasist and he's now telling this story he's never told anyone, including his wife.

Sounds fishy.

Thisseasonsdiamante · 02/03/2026 07:12

Sorry I can see others raised this before me. There is a possibility and based on likelihood that this happened the other way around especially but not limited to if it was in childhood. My own experience was that a family member who abused two members of my family tried to create a similar narrative. In that instance it was just a way of an abusive personality trying to control the narrative. Unfortunately some people believed his version but the truth was he abused children, I was there, I was one of them he definitely did it. One of the victims had fantastist tendencies after. That is a not uncommon response from children who are abused. They make up more palatable fantasies to cope with having been abused. Just be cautious especially if you have children. I missed your post where you gave her age. I see she was in her 40s, I still would be cautious it is much more common for men to behave these ways than women.

nomas · 02/03/2026 07:35

Stepsisterfromhell · 02/03/2026 01:24

He says he wants me to have LPA jointly with stepDM. I think he has been worrying because his wife is trying to get LPA and he thinks stepdaughter is behind it (her mum dotes on her). So he wants me as a counterweight.

Yes he is still with stepmother.

He's also concerned because they had a will with me as executor but it’s been “lost” and stepmother wants to make a new one for him with her as executor. How do we go about finding a lost will?

Did he make the will with a solicitor? Does he remember their name? They will have a copy.

What does he say his will says?

PrizedPickledPopcorn · 02/03/2026 07:37

Barnbrack · 02/03/2026 07:05

It's not women so much as the balance of power, he is the one who was like a parent to the girl, she's been painted as a bit of a fantasist and he's now telling this story he's never told anyone, including his wife.

Sounds fishy.

That said, he’s potentially the more vulnerable now. Not at the time it happened, but now.

Though @SnoopyPajamas people who are ‘fantasists’, ‘flaky’, are often that way due to childhood abuse. They are made ‘not credible witnesses’ by the abuse they experience. This could be true of your step sister. She could have been painted that why by abusive adults wanting to be sure she wasn’t believed, or become that why because of abuse.

Basically she could have made advances to your dad out of her own pain and vulnerability, or it may never have happened if your dad is suffering cognitive decline, or there may have been something from her childhood that your dad is trying to cover up.

There are a lot of credible possibilities, and not all of them reflect badly on your dad, or your stepsister.
Try and protect him without monstering her, if you can. It’s probably very complicated.

HarlanCobenDogshit · 02/03/2026 07:40

mathanxiety · 02/03/2026 05:10

He should go to a solicitor privately and draw up a new will.

Yes this. Especially if the original will is very old and possibly outdated.

You can take him and drop him off at the sols office. Etc.

Stepsisterfromhell · 02/03/2026 08:02

SeaShellsSanctuary1 · 02/03/2026 05:04

You may also want to consider that her version of events may be the truth

She has not given any version of events. And I am certain that if it had been the other way around, ie that my dad tried to seduce her, she will have made it known.

OP posts:
Rattlingbiscuittin · 02/03/2026 08:03

Barleycat · 02/03/2026 06:15

I dont get all the responses here disbelieving what the father has said. Does I believe you only apply to women now?

Bluntly? Yes.

men of his age are often more sexist and misogynistic because they grew up in a world where they were considering better than women.

men commit 98% of sexual offences. It’s far more likely he is the perpetrator rather than the victim of an unwanted sexual approach.

id be very surprised if a 40 something woman would hit on her stepfather.

And DARVO is a thing ( reverse victim and offender)

researchers3 · 02/03/2026 08:04

TyneTeas · 02/03/2026 01:04

I'd be more worried that at some point she will speak about this encounter with a different version

Exactly what I thought tbh.

WelcometomyUnderworld · 02/03/2026 08:05

How certain are you that it’s true? Because my seemingly compos mentis elderly relatively was insistent that he was being stripped naked and paraded round outside at night by a family member, when he absolutely wasn’t. He had a recurrent UTI.

MikeRafone · 02/03/2026 08:06

Stepsisterfromhell · 02/03/2026 01:42

Should I discuss with other siblings or no?

I would suggest to your father that you visit a solicitor and get advice on POA and a new will. Id not see that there was a need to have the step mother on the POA but it can be for both. Or suggest that step mother gets her POA with her daughter and leave it separate.

If this happened 10 years ago when your father was 60, then its very young at 70 to be looking at care homes