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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Not to want my young adult son having sex in my house

237 replies

SunnyBlueLurker · 21/06/2025 18:09

In my house?

New build. Thin walls.

His girlfriend is lovely (24), and he’s 23, but she has a lot of responsibilities. Last night I heard him say to her that he didn’t have anything on him (context must’ve meant condoms). And she said she didn’t either, both had a little laugh about it.

Heard him say to her ‘I love seeing you as a mum. I don’t mind if this makes that happen’ and off they went on their jolly jiggles! I was mortified. Mortified! As I say, paper thin walls and I was in the middle of texting a friend.

I have been exact in repeating what I heard to see if anyone other parents here would also find quite upsetting/strange and uncomfortable to hear.

AIBU not to want him having sex in my house? Or do I just blatantly make a lot of noise if I can hear them, or knock and say keep it down? Don’t think I’d have it in me to knock!

I cannot say this isn’t partly fuelled by the fact that I’m so worried he’s going to get her pregnant. What a disaster.

What do you think?

His dad sadly passed when he was younger so no other parent to ask about what they think.

OP posts:
OneFineDay22 · 21/06/2025 19:17

Five weeks?! So she’s being sensible not introducing her (VERY) new boyfriend to her son, but if she did get pregnant then what?!

I would be 100% say something. It is way too soon and he is not in the position to take risks

Barnbrack · 21/06/2025 19:16

PluckyChancer · 21/06/2025 18:18

She’s 24 with a child??? I’d tell him to run. 😳

At 24? Don't be ridiculous

leftorrightnow · 21/06/2025 19:14

UndermyShoeJoe · 21/06/2025 19:09

A room in my old street is £550 a month plus bills if you want a double it’s £650. Definitely not any luxury flats for the £950 my sibling pays.

When we rented our first house in 2009 a 2 bed with garage was £495.

Yes I get that prices have risen more than income. But if he can pay rent at home surely that’s equivalent to rent for a room in a flat share in a similar area?

Sassybooklover · 21/06/2025 19:12

I would catch your son on his own and tell him that the walls are paper thin in the house and therefore you can hear any 'activities' going on in his bedroom! Point out that you're sure he wouldn't want to hear you having sex next door, no more than you want to hear him, so pleased keep the noise down. Oh and by the way I don't wish to be a grandmother yet!!! Leave it at that and walk away. I lived in a lower ground floor flat, and our neighbour had the top floor, the property was once a house. We could hear the couple in the upper floor flat having loud sex, there was zero sound proofing. I caught her in the shared back garden hanging out her washing and said to her 'not sure you are aware but we can hear everything in our flat, and I mean EVERYTHING', she looked mortified and went bright red, but after that we didn't hear them! Sometimes, you have to be honest.

leftorrightnow · 21/06/2025 19:12

Namechangefordaughterevasion · 21/06/2025 19:08

Lol at this. Lots of places are too expensive for young people to live on their own. We are in Greater London. Between commuting expenses and low start up wages very few young adults can move out. The only ones I know who've done it generally did because they have horrible relationships with their parents.

My elder DD stayed home after uni until she was 26 and finally got a mortgage (with the help of the bank of M&D). Similarly, younger child lived at home between uni and 27 when she moved in with her BF.

I didn't police their sex lives though. At some point you have to trust that you brought them up right.

Who says they should live by themselves? He can flat share like most young people used to do. I did and so did practically all my friends from after uni and until late twenties when people coupled up and could afford (tiny) flats just for two.

living by yourself with other similar age young people is a great learning experience and lots of fun. Makes you lots more independent. And everyone’s having sex so no one cares about hearing each other.

Living at home at that age is awkward and this sex situation is likely just one aspect of the awkwardness.

Coconutter24 · 21/06/2025 19:11

AlpacaMittens · 21/06/2025 18:26

Absolutely fair enough for OP to say no partners in her house. It's her house, her rules.

But you really don't have "strong words about contraception" with a 23 year old.

It doesn’t have to be strong words as previous poster commented but a chat about possible out comes isn’t unreasonable

UndermyShoeJoe · 21/06/2025 19:09

leftorrightnow · 21/06/2025 19:05

I get that, but surely if he had a full time job he can rent somewhere super cheap and make it on his own? When I was 23 I was living in a dodgy part of London in a flat share with 4 other people. Just paid rent for my room. Had a boyfriend too who stayed over most the time and because this was a flat share w other young people this was fine. This was in 2005. Taught me to take care of myself and not take things for granted. Also, I had a blast and would do it all again if I could, the shitty job and weird times too.

nobody needs a two bed luxury flat to themselves at 23. Going back in time people had even less at that age. So fed up w people acting as if this generation of young people are somehow so much worse if than we were. They have higher expectations is what it is.

Edited

A room in my old street is £550 a month plus bills if you want a double it’s £650. Definitely not any luxury flats for the £950 my sibling pays.

When we rented our first house in 2009 a 2 bed with garage was £495.

Holluschickie · 21/06/2025 19:08

I don't charge my kids rent or board in this housing market.
In return, no partners.

Namechangefordaughterevasion · 21/06/2025 19:08

leftorrightnow · 21/06/2025 18:58

Why is nobody questioning a 23 year old still living at home..??
he needs to get his own place

Edited

Lol at this. Lots of places are too expensive for young people to live on their own. We are in Greater London. Between commuting expenses and low start up wages very few young adults can move out. The only ones I know who've done it generally did because they have horrible relationships with their parents.

My elder DD stayed home after uni until she was 26 and finally got a mortgage (with the help of the bank of M&D). Similarly, younger child lived at home between uni and 27 when she moved in with her BF.

I didn't police their sex lives though. At some point you have to trust that you brought them up right.

DiscoBob · 21/06/2025 19:07

If he lives there and pay board then you can't really dictate what he does with his genitals behind his closed door. He's a grown man.

If his gf is staying over too frequently you can maybe have a word about that but you can't ban him for doing sexy time in his mid 20s?!

Unless you can hear them but even then just tell them to be quiet.

SavingForChristmas · 21/06/2025 19:07

What is it that’s really bothering the most? That you can hear them or that he may end up fathering a child with a woman he barely knows and that he can probably not financially support?

If it’s the noise, be careful how you approach this. If you can hear him, he can hear you if you bring someone home. You’re going to sound hypocritical if you complain about the noise to him. If it’s the fatherhood issue, you can drop hints that you don’t think it’s a good idea to be having children when you don’t even have a place of your own. But ultimately they will do what they want to do. If they want to have sex, and if they want to make babies, that will happen either in your home, or at a Travelodge, or at her place, or wherever. Nothing you can do about that.

YankSplaining · 21/06/2025 19:06

Ugh. Hopefully, anyone mature enough to have sex would be mature enough to know that other people don’t want to know the moment that it’s happening!

I’d tell him you don’t want him and his girlfriend having sex while anyone else is in the house.

leftorrightnow · 21/06/2025 19:05

UndermyShoeJoe · 21/06/2025 19:01

Because it’s not 2010 anymore and rents are stupid our neighbours house in a voted shit city is 1.4k a month. The house we left a shit hurt wooden box went to £900’a month. When we left. My siblings 2 bed flat is £950 a month.

I get that, but surely if he had a full time job he can rent somewhere super cheap and make it on his own? When I was 23 I was living in a dodgy part of London in a flat share with 4 other people. Just paid rent for my room. Had a boyfriend too who stayed over most the time and because this was a flat share w other young people this was fine. This was in 2005. Taught me to take care of myself and not take things for granted. Also, I had a blast and would do it all again if I could, the shitty job and weird times too.

nobody needs a two bed luxury flat to themselves at 23. Going back in time people had even less at that age. So fed up w people acting as if this generation of young people are somehow so much worse if than we were. They have higher expectations is what it is.

Courgettezuchinni · 21/06/2025 19:05

Keep condoms in the bathroom cupboard and remind him to use them quietly!

ThatsNotMyTeen · 21/06/2025 19:05

Oh god no, no one wants to hear their kids shagging, any more than kids would want to hear their parents at it. I would be horrified

blackbirdevensong · 21/06/2025 19:04

Just yell "you'll have to be married before the baby arrives!"

SuburbanSprawl · 21/06/2025 19:03

leftorrightnow · 21/06/2025 18:58

Why is nobody questioning a 23 year old still living at home..??
he needs to get his own place

Edited

Yeah. Easy. Why doesn't he do that? Why are so many young people still living with their parents? They should get their own place - problem solved. Piece of cake. I mean, it's not like there's any shortage of affordable rented accommodation. It's not as if you need thousands as a deposit and upfront rent. It's not as if every landlord requires a credible guarantor, which are of course easy to come by.

It's all so simple. Why's no one questioning that?

deeahgwitch · 21/06/2025 19:03

millymollymoomoo · 21/06/2025 18:19

Tell him if he can’t afford to move out he can’t afford to be a dad and stop being an irresponsible idiot

👏🏻

Goody2ShoesAndTheFilthyBeast · 21/06/2025 19:03

leftorrightnow · 21/06/2025 18:58

Why is nobody questioning a 23 year old still living at home..??
he needs to get his own place

Edited

Because

  1. op wasn't asking whether her 23 yr old should live at home and

  2. it's not uncommon for people of that age to still live with their parents these days

UndermyShoeJoe · 21/06/2025 19:02

MounjaroMounjaro · 21/06/2025 19:01

Yet they are happy if she gets pregnant by him?

You should have joined in the conversation in a reasonably low voice. "Better start saving for a new place to stay if you're going to have a baby."

She probably has zero intention and hopefully
took the morning after if she technically isn’t on a long term contraception. She’s self confidence building after a divorce.

Keeps his mind in the thrill of the action tho.

fatgirlswims · 21/06/2025 19:02

I think your son is being disrespectful to you. Basically hooking up with an ex for a couple of hours at your expense isn’t really on. Are they dating?

if they are dating and having a wide range of interests and varied activities and this was a one off then maybe ok (except the bit about ttc) but if it is just the regular her mum looks after the son and she pops over for a quickie then no that is not on IMHO.

MounjaroMounjaro · 21/06/2025 19:01

SunnyBlueLurker · 21/06/2025 18:18

Then why are they having sex in your house?

They went to school together but she lives an hour away and I get the impression she doesn’t want him meeting her DC so sensibly isn’t having him around her house

Yet they are happy if she gets pregnant by him?

You should have joined in the conversation in a reasonably low voice. "Better start saving for a new place to stay if you're going to have a baby."

Namechangefordaughterevasion · 21/06/2025 19:01

When it's just you and him around tell him he probably doesn't realise how much sound travels in new build houses and he might want to play some background music when him and his GF are alone together. Also, maybe invest in some noise cancelling headphones or earbuds.

UndermyShoeJoe · 21/06/2025 19:01

leftorrightnow · 21/06/2025 18:58

Why is nobody questioning a 23 year old still living at home..??
he needs to get his own place

Edited

Because it’s not 2010 anymore and rents are stupid our neighbours house in a voted shit city is 1.4k a month. The house we left a shit hurt wooden box went to £900’a month. When we left. My siblings 2 bed flat is £950 a month.

Catsandcannedbeans · 21/06/2025 19:01

I mean at their age me and DP had 2 kids… neither of them were conceived at my parents house tho. I’m way too scared to have sex in my mums or my in laws. I think the insinuation you heard them shagging should be enough to put him off that part.

If you want to put him off having kids, let him know how much they cost and show him some of the threads on here about blended family horror stories. Also, my DP had to spend his 20th birthday holding my hair back while I was horrifically sick while all his mates enjoyed his party… there’s pros to being young parents, that’s why we chose to do it - but it’s not something to enter into casually. The same with blended families.