Kind of a sticky question.

I don’t even know how to frame this question properly, so I’ll be as general as possible at first and then answer as many questions as need be in the follow ups.
I was doing some tidying up around the house and was changing sheets in the boy’s room when I found a wad of girl panties under the mattress of the 17 year old. The sizes on the panties were of girls younger than him, like size 12 and 14. I didn’t recognize them as being from any of the girls in the house, but I don’t keep up with whose wearing what under their britches anymore. There were 5 pairs of panties, all different styles and they looked clean from a quick glance, except for a bit of starchiness in them (yes, prolly what you think).
Ok, before I get too far, the 17 year old is my girlfriends son and shares the room with my 10 year old son. They have separate beds. Also, my gf’s 12 year old daughter shares a room with my 12 year old girl and my 9 year old girl, again in separate beds. This may be where the panties are coming from, but I kind of doubt it. The 17 year old has step sisters at his dad’s house too. Like three. So there’s a vast resource of panties available. That felt pervy just saying that.

Anyway, this is the Second time I found a stash under his mattress. The first being about a year ago. At the time I thought it was just one of the girls being lazy and putting dirty clothes out of site to make cleaning up go quicker. I found the panties back then too and asked all the girls if they knew whose these were and they all put on a dumb face and shook their heads. I don’t remember what I did with them back then, I either threw them away or washed them and put 'em back in circulation. Can’t remember.

I did not tell my GF then because there wasn’t a concern (just bad house keeping I thought) but now I’m concerned that there is a panty thief in the house. And that they’re being used for nefarious 17 year old boy fantasy fulfillment. I’m not a prude but I don’t know if I should be concerned or if I should tell the GF about it. I don’t know what she would say to him, or how she could even bring it up to him If I tell her. I also don’t want to embarrass the shit out of him.

What would you do in this situation?

My only question is why a 17 year old isn’t changing his own linens, etc?

Does he have a girlfriend that you’re aware of? They could be hers (girls wear awfully small, tight underwear these days, and many of us don’t throw out smaller sizes until we really can’t squeeze into them anymore.) He could be buying them off the internet (yes, really).

If they don’t belong to the girls in the house, where do you think he might be stealing them from? I’d be concerned about theft, full stop, rather than getting hung up on *what *he’s stealing.

Sorry I don’t have any comfortable answers. If you knew where they came from and it was a legal and innocuous source, I’d say just put 'em back and find the brain bleach, 'cause masturbating to/with them is not actually hurting anyone. But theft *is *a problem, no matter what he’s stealing.

Oh, geezeopeet…there are *two *12 year old girls, aren’t there? Sorry, let me try to repost what I deleted, 'cause it is still relevant.

I would keep a very close eye on the relationship between the 17 year old and 12 year old. Adolescents not raised together often develop romantic or sexual feelings for each other - even though you and your girlfriend think of them as siblings-ish, they may not. The aversion we have to sexual contact with our siblings seems to rely on either close proximity to them as infants and toddlers, or to seeing our mother-figures mother them, we’re not sure which.

So, icky as it is to think about, pay attention to their body language, proximity and words, especially when they think they’re alone. Institute a “doors stay open” policy if you don’t have one. They’re at too developmentally different ages to be a safe and appropriate match, IMHO. It could be damaging to both of them.

I don’t know where you are located, but in the US sizing system, size 12 or 14 would be HUMUNGOUS panties, very unlikely to belong to a little girl.

Everyone seems to be making the assumption that he must be stealing the panties. It is legal to sell panties to a male. Cheap multi-packs can be purchased at nearly any drug store and many large supermarkets. If he has a thing for panties, using the self-checkout can save embarrassment.

Would it perhaps be less embarrassing for him if you spoke to him? I say: just straight up ask him where they are coming from.

  • If they are his secret gf’s then don’t rat him out to his mum and remind him to use protection (no, not when alone with the panties :smack: ).

  • If they belong to the girls in the house you will need to speak to your girlfriend and come up with consequences. And you will need to find out if the panties were voluntarily donated or not.

  • If he is buying the panties (used over the internet or clean in a shop) point and laugh. :wink: Then breathe a sigh of relief.

You are right to be concerned though, so I think asking him yourself is the first option. If you really can’t do that I’m afraid you will have to speak to your girlfriend.

ETA: and as Alley points out, size 12-14 is adult sized to me, but then that’s UK sizing.

Little girls’ sizes go up to 14, and then the numbers start over again for Juniors and Women.

And yes, I was assuming they belonged to a young lady at some point because I assumed the OP could tell they’d been worn at some point. But you could be correct, and that’d be wonderful! So how does the OP figure out where they’re coming from?

To clarify. The 17 year old does not have a girlfriend and the panty sizes are 12-14 girls. Not ladies.
Thanks.
Also, I just checked the bed and there was only one pair there. I think he may just be borrowing them and putting them back in the laundry at opportune times.

Sounds like his computer is broken.

Or all his socks are in the laundry.