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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

Not to have known his true age before sleeping together?

487 replies

Lockingthegins · 20/12/2025 22:03

He’s bloody 18! Not 19 until April

Casual conversation and flirting lead to hotel room and sex.

Really mortified to discover he is actually 18. No, he didn’t actually tell me. I assumed he was about 21. I am 28.

I feel so, so awful. Really panicked when I found out the morning after. He doesn’t seem bothered and thinks it’s all fine. Grinning like a Cheshire ca

Good lord, I haven’t scarred him for life, have I? Please someone assure me I’m not sick in the head

I would be furious if I was his mum!

OP posts:
Ratioed · 20/12/2025 22:05

Ick.

Why didn’t you ask? And look for proof?

What age are you?

Eyesopenwideawake · 20/12/2025 22:06

Don't sweat it. You'll be a happy memory until his dying day.

Hope it was equally good for you.

Lamentingalways · 20/12/2025 22:07

He’s an adult don’t beat yourself up. Probably best to check in future though.

tartyflette · 20/12/2025 22:07

Well, he is already an adult, so...
And his Mum is not your problem. I doubt very much that he's going to tell her.

oviraptor21 · 20/12/2025 22:08

You weren't to know. And it's not illegal anyway. Even if you had asked him, he might have lied.
Nothing to worry about. You did nothing wrong.

Gunpowder · 20/12/2025 22:08

He’s 18. He’s not a child! It sounds like he’s thrilled. You aren’t his teacher. Unless there’s a massive backstory about how you coerced him, you haven’t done anything wrong.

Chickenhorse · 20/12/2025 22:09

Little bugger, but slightly funny. A 21 year old is better but not much. You will be his older one story for ever.

Missj25 · 20/12/2025 22:10

Ratioed · 20/12/2025 22:05

Ick.

Why didn’t you ask? And look for proof?

What age are you?

Edited

She does said she is 28 🙄

NormasArse · 20/12/2025 22:12

It’s not illegal!

Did you enjoy it before you found out?

Lockingthegins · 20/12/2025 22:12

NormasArse · 20/12/2025 22:12

It’s not illegal!

Did you enjoy it before you found out?

Yes I did. But now I feel so much remorse and shame

OP posts:
TeaRoseTallulah · 20/12/2025 22:12

Even if he was 19 I think 28 is too old even if it is legal.

DeathStare · 20/12/2025 22:14

Well you lucked out didn't you? He could just as easily have been 17. Next time check.

Makemeanonymous · 20/12/2025 22:17

Eyesopenwideawake · 20/12/2025 22:06

Don't sweat it. You'll be a happy memory until his dying day.

Hope it was equally good for you.

And you are equally approving of a 28 year old guy having a ons with an 18 year old woman?

Would he be a a " happy memory" to her dying day?

Hankunamatata · 20/12/2025 22:17

He is 18. Im guessing he wasn't paralytic, you weren't hugely aggressive in your approach (aka jumped on him) and he was able to make informed consent? If you to all the above then I wouldn't stress. Now if you wanted to date him I might be a bit hmmmmm
And yes I'd say the same to an 18 year old girl and 28 year old man

tartyflette · 20/12/2025 22:18

I presume you didn't coerce him, or ply him with booze? And thatt you're not his senior at work or anything like that?
if the answers are no, no and no then I can't see that you're at fault in any way.

ilovepixie · 20/12/2025 22:19

If it was a 28 year old man sleeping with an 18 year old girl would the responses be the same?

RollyPollyBatFace · 20/12/2025 22:21

Well as the mother of a 19 year old son, yeah, I’d be unimpressed with you that’s for sure

having said that, I’m not likely to know so meh

but next time - check? It’s only by luck he wasn’t 17. And are you really telling me you couldn’t tell he was 18?!

PrincessofWells · 20/12/2025 22:22

ilovepixie · 20/12/2025 22:19

If it was a 28 year old man sleeping with an 18 year old girl would the responses be the same?

FGS my partner is 14 years older than me - I very much hope Op enjoyed her shag and had a great time. And Op, don't feel guilty - please.

RosieTheHat · 20/12/2025 22:23

I couldn’t deal with this. At 28 even thinking he is 21 wouldn’t sit right with me.

Gottagetfitin26 · 20/12/2025 22:23

Sorry but I don't see the problem. You're both consenting adults. Don't beat yourself up

SwanRivers · 20/12/2025 22:24

You're lucky he wasn't even younger, since you assumed his age.

NormasArse · 20/12/2025 22:26

Lockingthegins · 20/12/2025 22:12

Yes I did. But now I feel so much remorse and shame

Don’t. He obviously wanted to and he’s old enough to drink, vote, and get married.

Glad you enjoyed yourself!

Alpacajigsaw · 20/12/2025 22:26

Am I missing something with the “at least he wasn’t 17” comments? The age of consent is 16 no? I must be missing why OP having sex with a 17 year old would be worse than with a 18 year old.

OP it’s understandable you have the cringe but as the mum of 2 boys of similar vintage his mum is hardly likely to find out let alone hunt you down. Chalk it down to experience and be a bit more careful next time!

TrishM80 · 20/12/2025 22:26

Mad double standards

TrishM80 · 20/12/2025 22:27

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