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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To tell stepson’s girlfriend she’s not sleeping over again after what I walked in on??

598 replies

AutumnMum28 · 30/09/2025 14:10

DSS (17) has had his girlfriend over a few times now, I’ve been fine with it, they sit in the living room with snacks and films etc, nothing major. Last night OH was on nights and I went up early with baby (who doesn’t sleep 🙄). Came down about midnight because I’d left washing in the machine and nearly had a heart attack when I walked past the living room… let’s just say I saw FAR too much, blanket half on the floor, both of them half naked 😳 I honestly feel sick even writing this.

I didn’t say anything in the moment, just stomped upstairs, but now I feel so uncomfortable in my own house. I’ve got younger DC (10, 5, 17mo) and it just doesn’t sit right at all. He’s technically still in sixth form, under our roof, and I don’t want this kind of thing going on.

OH says “he’s nearly an adult, better they’re safe here than in the park” 🙄 but I don’t want my home turning into a hotel room. I don’t even know how to look her in the eye now, poor girl looked mortified too.

So AIBU to tell him she’s not sleeping over anymore? Or do I need to suck it up and accept it?

OP posts:
NellieElephantine · 30/09/2025 15:54

TheWomanTheyCallJayne · 30/09/2025 15:49

I can’t believe the amount of people who think that a Lego shrine room is some room set aside just for Lego for one child rather than the small (as described) bedroom that’s probably got Lego on the walls, a Lego design duvet and and maybe some models on an available surface.

Lego or whatever his hobby is, at least the parents in the house care enough about him to give him his own room and decorate it to his preference.
17yo, nope, you get a begrudged sofa bed in the living room and no privacy.

Broadwalkpls · 30/09/2025 15:54

Bushwoolie · 30/09/2025 15:53

Why on earth does that poor boy not have a room?

You and your OH need to be in the lounge and the bedrooms shared between the kids. In no way is this fair that after a year he's still on a sofa bed and isn't even allowed the privacy of using it as a bedroom rather than a shared space!!

Because two adults thought “fuck the consequences” and moved in to a tiny property together

MidgesonMull · 30/09/2025 15:54

So you and your partner chose to have this number of kids despite his already having a son
Poor kid, he's had his life turned upside down and doesn't even get a bedroom because of the shiny, new, "real" family
You show zero empathy for him, OP
Never mind, he'll be out soon and you can get on with raising your precious family

TheWomanTheyCallJayne · 30/09/2025 15:55

Broadwalkpls · 30/09/2025 15:51

How lovely for him

meanwhile the teenager pulls open his bed in the lounge every night

where are his clothes? His desk for studying? Space for his things?

Wtf.
How’s that relevant to what I said?

MyAcornWood · 30/09/2025 15:55

randomchap · 30/09/2025 14:35

So essentially, you walked into his bedroom without knocking? It may double up as a sitting room during the day, but at night it's his bedroom and he's entitled to some privacy.

This. It’s shit enough that he doesn’t have his own bedroom but now he’s to be bollocked for having sex with his girlfriend in the space that should be private for him at night. You’re being so unreasonable here op.

FrondsofFriday · 30/09/2025 15:55

Here are your options:

  • You and DH move into the living room as your bedroom
  • Middle kids share, baby in with you, SS gets boxroom
  • You agree that the living room is his private space eg 9pm onwards and keep out
  • You make a big deal out this and alienate him even further than being the only one without a bedroom already has
  • You move to a property with enough rooms to accommodate all your children, who did not choose or ask for this.
BCSurvivor · 30/09/2025 15:56

''DS1 has his little Lego shrine room''
Well, as you state that your two other children share a box room I'm presuming DS1 has a double room all to himself, so he can spread out his lego, while your poor stepson has no bedroom at all and has to make do with a sofa bed in the lounge.
That doesn't really seem very fair, OP.

Broadwalkpls · 30/09/2025 15:56

TheWomanTheyCallJayne · 30/09/2025 15:55

Wtf.
How’s that relevant to what I said?

Bizarre

duffed · 30/09/2025 15:56

Give the poor boy a bedroom, maybe you and partner should move to the sofa?

Leave them to it. This is very much your issue and not theirs.

Hankunamatata · 30/09/2025 15:56

Well he was in his bedroom aka the sittingroom so no i don't think you can say much

sofaRunner · 30/09/2025 15:56

agree with other posters - you are being unreasonable. At 17 he needs his own private space, however small, more than the younger kids who would probably benefit from sibling company overnight. Definitely better to have 17 year olds having sex in proper bedroom than in a park or sitting room. Gives a respectful message to the younger kids too
Poor girlfriend - she must be so so mortified & absolutely doesn't need shaming

TheWomanTheyCallJayne · 30/09/2025 15:57

NellieElephantine · 30/09/2025 15:54

Lego or whatever his hobby is, at least the parents in the house care enough about him to give him his own room and decorate it to his preference.
17yo, nope, you get a begrudged sofa bed in the living room and no privacy.

I don’t deny that.
i just am mystified by the ability of some to read things completely wrong.

My reaction to the op and further post saying he was in ‘his room’ was swap the rooms around but in the meantime tell him to shut the door. People seem to have missed she said she was walking past too.

Sunshineandpool · 30/09/2025 15:57

Personally I'd never not provide a bedroom for my teen kids of at all possible. I sleep on the sofa bed in my living room so both my children have a bedroom.

You could do that. Or give the biggest room to the 3 young children and the smaller 2 for you and the 17yo.

If his bedroom is basically the living room then obviously they will have sex there. Not sure what you were expecting!

But easily solved - just give him a bedroom!

VickyEadieofThigh · 30/09/2025 15:57

I'm wondering where the 17 year old does his homework and studies for exams.

I'm speaking as a person who, as a teenager, had to share a room until I was in the Lower 6th and had nowhere private to study (the shared bedroom had no heating, either - this was the 70s and we were poor). My O levels were only mediocre as a result - but getting my own room early in the L6th meant I absolutely flew for A levels.

This young man needs his own space for that reason alone - it'll help him move out, OP and I bet you want that...

whatasillygoose · 30/09/2025 15:58

AutumnMum28 · 30/09/2025 14:31

No he doesn’t even have his own room 😩 that’s half the issue!! We’ve only got 3 bedrooms so DS1 has his little Lego shrine room, the 2 little ones (5 + baby) are crammed in the box room, and me + OH in the main. DSS has been on a sofa bed in the living room since he moved in full time last year. It’s not ideal but what can we do, can’t magic another room.

I haven’t spoken to him yet, OH just sort of shrugged and said “he’s nearly 18, leave him be” 🙄 which is easy for him to say when he wasn’t the one who walked in!! I feel so awkward I can’t even look at DSS this morning, he just sloped off to sixth form like nothing happened. Not sure if OH will actually say anything to him either tbh, he hates confrontation.

I just don’t know what the right balance is, like I get he’s nearly grown up but surely in OUR family living room when the little ones could come down any time isn’t on??

You have created a situation where one of the family children doesn’t even have their own bed.
Either by moving to a home without enough rooms or choosing to have more children than you can house.

I don’t think every child in a family needs their own room and sometimes need to share but he doesn’t have anywhere.

Whether he lived full time with you before is irrelevant, surely he will have been visiting. Seems like it’s been made pretty unwelcoming for him.

sofaRunner · 30/09/2025 15:58

MyAcornWood · 30/09/2025 15:55

This. It’s shit enough that he doesn’t have his own bedroom but now he’s to be bollocked for having sex with his girlfriend in the space that should be private for him at night. You’re being so unreasonable here op.

this!!

GertrudePerkinsPaperyThing · 30/09/2025 15:58

Maybe the lego shrine was a bit misleading but the OP used those words, and it took me a while to work out there were three younger siblings, not just two.

All that being said, clearly all the children should be in bedrooms. In a family, if anyone has to sleep downstairs, it’s the parents.

In the rare circumstances that a child of the family takes a downstairs room, it becomes fully a bedroom, never used as a communal space, ever.

ohyesido · 30/09/2025 15:59

Stepmother from hell springs to mind.

you don’t let him have a room. You stomped upstairs because you caught a glimpse of nudity between consenting adults.

and now you want to ban her from the house?
just admit you don’t like him

TheWomanTheyCallJayne · 30/09/2025 15:59

Broadwalkpls · 30/09/2025 15:56

Bizarre

Yes it was, no idea why you said it.
But we’re going off topic now.
Op has had plenty of suggestions as how best to arrange rooms and should work with whichever works for room sizes.

Broadwalkpls · 30/09/2025 15:59

TheWomanTheyCallJayne · 30/09/2025 15:59

Yes it was, no idea why you said it.
But we’re going off topic now.
Op has had plenty of suggestions as how best to arrange rooms and should work with whichever works for room sizes.

But won’t do anything

aside from prove my have another baby

isitmyturn · 30/09/2025 15:59

OUR family living room -His bedroom.
Poor kid to be so unwelcome he has to sleep in the living room for a year. Not only that you walk into his space in the middle of the night.
Give him the smallest room, baby with you and the other two share.

MeropeRiddle · 30/09/2025 16:00

TempestTost · 30/09/2025 15:51

If you'd rather give the message that they would be better off not to be having sex, OP, I think maybe allowing her to stay over was a mistake.

But there is no reason you cannot change the rule now if you like, it's your house. I don't really subscribe to the "at least they are doing it in a safe place" idea.

You don’t subscribe that teenagers should be allowed to have sex? Really?🙄

agoodfriendofthethree · 30/09/2025 16:02

Poor kid, and his poor girlfriend. You owe him a massive apology for not having figured out a way for him to have his own space in his own home, and for not respecting their privacy at midnight.

stomachamelon · 30/09/2025 16:02

No it’s not ok for them to do that in the living room.

Your living situation needs to be looked at again though. It’s not fair for more than one of the members of your family.

insomniacalways · 30/09/2025 16:02

At 17 I might have assumed this was happening - remind them to shut the door - and maybe get a lock for it. Sad, the kid doesn't have his own room. Especially as from memory little kids get up very early.