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Chastity kink is not about hindering your partner to cheat. It's symbolic. Also, I would guess that many would pair up that bra with something down there.
Ir's a chastity fetish toy I'd guess. You could also just move it up or down, breasts are, contrary to what some men think, not like basket balls after all.
Not to be the bearer of icky news, but these already exist and are called chastity belts. There’s usually a metal grate for pee to come out of and the booty part is left open (or plugged). It is not very sanitary and needs to be removed daily by the “key holder” for bathing. It’s almost always a kink thing. Even historical accounts indicate that it was a kink thing and only used as a “curiosity” between couples as opposed to like parents locking up their virgin daughters.
The thing is most historians have pointed out that chastity belts are nonsense, theres little evidence they were ever used and more evidence suggesting it was a bit of modern story telling. Even if someone were to wear one they would die of sepus in afew months.
They were talked about in medieval sources but were an imaginary bawdy trope. A couple were manufactured as novelties for kinky people or as a display item but they would have been unwearable.
Chastity for AFAB bodies is still impractical and/or painful. There are chastity cages for AMAB bodies but they are usually not secure without a piercing.
"Why would a cheater buy this" They won't. I doooooo envision that the insecure and/or control-freak-type folks would get these, and hope that they can force/coerce their partners into wearing these without their partners getting tf outta dodge
Well if she was a woman she would have said “as a woman with touchy nips….” But she is a demigirl, not a woman. In either case it is an example of metonymy, a rhetorical device which replaces a name with a part or descriptor. The key here is the metonymy contains information, in this case the implication that there has been some experience with bras.
It seems you're not really familiar with what chastity kink is actually about. It's not about not having sex, it's about not being able to access your private parts to pleasure yourself. For people with male genitalia it mostly comes in the form of a cock cage, for ones with female genitalia it's chastity belts. A bra like this could limit the access to breasts which for some people, that don't have sensitive nips would do nothing, but for the ones that do it could serve as an additional layer of denial
Even in the world of engineering, students are often tasked with identifying some problem and coming up with a unique solution utilizing whatever tools the professor wants you to use.
And given that coming up with practical solutions for genuine problems is non-trivial, it usually means making up some shit like this.
I once built a silly robot that ripped your blanket off of you, opened your blinds, and started the coffee maker.
Does it make any real sense? No.
Did it involve having a robot with various sensors that can avoid obstacles and interact with various objects in different ways? Yes.
(The inventor's) real name is 相澤 裕貴（あいざわ ゆうき), and his site notes that he exhibits his inventions at contests and comedy events in Osaka. He said via email that his work has been featured in both exhibitions and Japanese comedy shows and that he recently held a solo exhibition. However, the "anti-cheating bra" has not yet been publicly displayed.
This feels like engagement bait cause for one in no way does it prevent cheating, second women take off their bras for more than just sex, and three if this bra does exist this feels more like kink wear or an art piece than a practical device.
By the way, in case anyone was wondering the Japanese birth rate is one of the lowest in the world and schools are already having to close because nobody is having children, probably because Japanese women have to deal with shit like this
I mean this seems like some elaborate meme and beggars belief it is real but let me engage with this real quick from a male POV
This is the stupidest and toxic take on cheating ever. Like same mentality as 'check her phone constantly' etc.
My dudes, if the only thing stopping someone from cheating is your hyper vigilance, then it isn't healthy. The right partner (woman in this case), could be in a room with a bunch of naked men ready to bone her, her and them jumped up on alcohol and is guaranteed you would never find out and guess what she would still not cheat because thats not what good people do - and thats the type of person you should invest in. She would respect, love and cherish you too much to betray you.
If that isn't the type of energy you both bring to each other, then idk why you would waste each other's time in a relationship to begin with but thats just me.
I'm an idiot because I stared at the pic thinking "why would a bra prevent a woman from cheating, she can just hide her cheat sheets somewhere else" took me a while to realize we weren't talking about exams 💀
Does it respond to her own fingerprint as well? Or does she need her boyfriend to fingerprint to get it off? What if the couple splits? Is the doomed to wearing a bra 24/7?
As the owner of natural 38E tits... Fu*k right off!
The best feeling at the end of the day is freeing the demons! And, If I gotta wait for some fat-fingered chode-owner to unleash the beasts... I'm cutting that thing off.
Don't get me wrong... If this is part of your pet-play... Have fun. But if you think that's going on without limits.... Nope.
Plus... As someone who knows the tech field.... This is ripe for misuse.
Yes! Absolutely fuck that. Taking my bra off when I’m done for the day is one of the only things worth living for. (Obviously I’m exaggerating but it’s such a good feeling)
I’m both amazed and horrified. I hope this was some kind of proof of concept project and not the true intention of the tech. Sadly my hopes may be delusional.
besides how weird this is, there's really no point to it. no one is gonna force women to wear this against their will, and if women do want it then that means they obviously won't be cheating, so why would they buy it in the first place
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They know she can still cheat even if she keeps her bra?
I think it's less about cheating and more about chastity kink tbh
Chestity ( Sorrry couldn’t resist the pun)
A pun? BOOOObs
Wrong! Chest-titty is the easy pun for this
You stole my glory
chest titty (sorry)
boobs (please forgive me)
Chest-titty was right there someone else pointed this out already
So if I sleep with a man with my bra on, I retain chastity? NOTED.
Yes.
[deleted]
They’re not talking about the kink version of chastity
A chastity bra does literally nothing. The vagina's not on the chest
It’s a kink thing, which has less to do with actual chastity and more to do with control for some people.
Chastity kink is not about hindering your partner to cheat. It's symbolic. Also, I would guess that many would pair up that bra with something down there.
Yeah this feels more like fetish gear
Yeah, as fetish wear it has an obvious use case, as actual clothing; how's she supposed to have a shower if she can't take her own bra off?
Chastity? You can cheat while keeping a bra on. Also, why is cheating limited to sexual acts? Emotional cheating is just as bad.
Im going to assume "chastity" here is referring to cages and locked panties kink, not so much the weird purity/anti-cheating things.
My whore ex cheated on me yesterday. She took a shower alone.
Which can be a kink :p
I think it’s more about possession
I was about to say. This would make for a very interesting kink item.
Ir's a chastity fetish toy I'd guess. You could also just move it up or down, breasts are, contrary to what some men think, not like basket balls after all.
And that she’ll never be able to shower again?? You know, the important things.
Ignoring the elephant in the room, why the bra and not the panties? and why would a cheater buy this?
He hasn’t learned that much about sex yet, only knows about boobs
The panties? How they gon pee then
??
Just dont?
smh skill issue
As if women pee, smh
I shouldn’t have to /s, but this do be reddit so.
/s
Not to be the bearer of icky news, but these already exist and are called chastity belts. There’s usually a metal grate for pee to come out of and the booty part is left open (or plugged). It is not very sanitary and needs to be removed daily by the “key holder” for bathing. It’s almost always a kink thing. Even historical accounts indicate that it was a kink thing and only used as a “curiosity” between couples as opposed to like parents locking up their virgin daughters.
The thing is most historians have pointed out that chastity belts are nonsense, theres little evidence they were ever used and more evidence suggesting it was a bit of modern story telling. Even if someone were to wear one they would die of sepus in afew months.
They were talked about in medieval sources but were an imaginary bawdy trope. A couple were manufactured as novelties for kinky people or as a display item but they would have been unwearable.
Chastity for AFAB bodies is still impractical and/or painful. There are chastity cages for AMAB bodies but they are usually not secure without a piercing.
Right? eeew
Wdym? Women don't pee
/s
Idk that the cheater buys this….
But good luck getting the size right!
I could see a kink application for the panties, except I would personally advice against using "smart" devices as kink gear.
That kind of thing already exists. And yes, they already have technical issues.
Ooof course they do! 😬😬😬
More technology does not equal better product/experience
"Why would a cheater buy this" They won't. I doooooo envision that the insecure and/or control-freak-type folks would get these, and hope that they can force/coerce their partners into wearing these without their partners getting tf outta dodge
It's almost like it's a joke and not a real thing, right?
I mean I assume you would get them a set
Everyone knows men can't get erect unless we have direct line of sight with the nipples /j
I mean, could just be a chastity kink
As a demigirl with very touchy nips, prolly.
i don't mean this in a rude way, but what does you being a demigirl have to do with this?
Well if she was a woman she would have said “as a woman with touchy nips….” But she is a demigirl, not a woman. In either case it is an example of metonymy, a rhetorical device which replaces a name with a part or descriptor. The key here is the metonymy contains information, in this case the implication that there has been some experience with bras.
In short: Calm your tits.
Calm my tits while you're at it
That's what the bra is for
Working on it, only been on E like a month and a half lmao
thank you!
Agreed. Considering the level of tech involved, this is almost certainly what the idea was.
The vagina's not on the chest. A bra does absolutely nothing for chastity
It does if you pair it with a chastity belt. A lot of people of any gender have sensitive nipples
[deleted]
It seems you're not really familiar with what chastity kink is actually about. It's not about not having sex, it's about not being able to access your private parts to pleasure yourself. For people with male genitalia it mostly comes in the form of a cock cage, for ones with female genitalia it's chastity belts. A bra like this could limit the access to breasts which for some people, that don't have sensitive nips would do nothing, but for the ones that do it could serve as an additional layer of denial
muzzle
Yo, this person over here thinking chastity is only for vaginas.
I'm gonna assume this is a lie and assume it's kink wear
As kink wear this is actually really fucking funny (and still a horrible idea in general)
No they didn’t
I mean “a Japanese student invented” almost certainly means “some Japanese person I don’t feel like giving credit to made an art project.”
Yeah it does look waaaaay too cyberpunk to be actually functional
Yeah this screams "art project thats going to be selling hot cakes in the fetish community" also can see this being really popular with raves
I think you're right.
https://www.dnaindia.com/viral/report-japanese-student-designs-smart-bra-that-unlocks-only-with-boyfriend-s-fingerprint-only-your-boyfriend-can-open-3180042
https://www.facebook.com/share/1KjxTjWiMh/
Even in the world of engineering, students are often tasked with identifying some problem and coming up with a unique solution utilizing whatever tools the professor wants you to use.
And given that coming up with practical solutions for genuine problems is non-trivial, it usually means making up some shit like this.
I once built a silly robot that ripped your blanket off of you, opened your blinds, and started the coffee maker.
Does it make any real sense? No.
Did it involve having a robot with various sensors that can avoid obstacles and interact with various objects in different ways? Yes.
Fr
Are they gonna add a second finger print when they get a baby?
And let her cheat on him with her baby?
There's only room for one baby in this relationship
Imagine u just wanna rip it off after a long day but u gotta wait for the dude to come home...
Whelp. Time to get scissors.
Or really any tool that can remove a boyfriend's finger from its hand.
I was thinking to destroy the bra but that works too
Some are into that. It's a kink
You've heard of the chastity belt, now behold the chastity bra
They already exist as well 😭
people use this for controlling their partner, that's obviously bad.... HOWEVER
This is a type of kink for many people. Plus this is an attention grabbing twitter post.
Until I see somebody link an article about this, I do not want to call this a "Are the straights ok" case.
How about a Snopes analysis article?
https://www.snopes.com/news/2025/04/06/japan-bra-anti-cheating/
A worthwhile quote of the article:
So.... It's pretty much just an art display?
This feels like engagement bait cause for one in no way does it prevent cheating, second women take off their bras for more than just sex, and three if this bra does exist this feels more like kink wear or an art piece than a practical device.
How about one for men that can only be unlocked by female consent.
Chastity cages. It is a thing already. This is just a kink post. There are chastity belts for pussies too.
That's a cock cage
Already are there
cyberpunk kinkwear
im pretty sure this was supposed to be an "art piece" showing the absurdity of men controlling womens bodies. im pretty sure i read that somewhere.
"I want to shower and put on PJ's but my bf isn't home yet to unlock my chastity bra"
Chastity belts, cages, and whatnot are already a thing and are well established kinks. I don’t see how this is news worthy.
I saw anti-cheating and assumed this was somehow going to stop people from copying their test answers, then I got to the thumbprint part
Man i thought cheating as in gaming, it looks like every rgb headphone gamer set ever
i mean, this is basically a chastity cage and it could be used bona fide (see another comment about chastity kink)
By the way, in case anyone was wondering the Japanese birth rate is one of the lowest in the world and schools are already having to close because nobody is having children, probably because Japanese women have to deal with shit like this
Ignoring the stupid implications, the design looks sick and i would love to wear a bra that looks like that.
I mean this seems like some elaborate meme and beggars belief it is real but let me engage with this real quick from a male POV
This is the stupidest and toxic take on cheating ever. Like same mentality as 'check her phone constantly' etc.
My dudes, if the only thing stopping someone from cheating is your hyper vigilance, then it isn't healthy. The right partner (woman in this case), could be in a room with a bunch of naked men ready to bone her, her and them jumped up on alcohol and is guaranteed you would never find out and guess what she would still not cheat because thats not what good people do - and thats the type of person you should invest in. She would respect, love and cherish you too much to betray you.
If that isn't the type of energy you both bring to each other, then idk why you would waste each other's time in a relationship to begin with but thats just me.
imagine if they broke up and the girl couldnt take it off 😟
That looks like something Link would wear in Breath of the Wild…
How the fuck does this stop academic cheating? I’m giving this student an F, for FAILURE.
The whole premise is gross, but how is a bra supposed to prevent cheating anyway?
So that she doesnt go around shoving her tits in someone else’s ass, duh, dont you get it?
If you actually feel the need to use shit like this to prevent your partner from cheating, your relationship is already broken.
Did the guy not pause for two seconds to understand that you can have sex with a bra on?
Does no one else just slip their bra off over their heads...?
I've been wearing nothing but sports bras for the last *counts fingers* um, at least a decade and a half, so, no, you're not the only one.
Mf reinvented chastity belt, but in the wrong way
This would do numbers in the chastity community.
Me pondering how this is supposed to stop academic dishonesty:
That was also my first instinct and I was very confused for a minute lol
Real talk the bra looks cool af
Its a horrible idea but id wear it to a music festival just cause it looks like it belongs there
Imagine getting home from work & needing to wait on your partner to remove your bra. TORTURE DEVICE
So she can’t take off her own bra?
I'm an idiot because I stared at the pic thinking "why would a bra prevent a woman from cheating, she can just hide her cheat sheets somewhere else" took me a while to realize we weren't talking about exams 💀
I mean I can definitely see this getting use in chastity kink scenarios
Does it respond to her own fingerprint as well? Or does she need her boyfriend to fingerprint to get it off? What if the couple splits? Is the doomed to wearing a bra 24/7?
This is 100% only getting used for kink, huh?
As the owner of natural 38E tits... Fu*k right off!
The best feeling at the end of the day is freeing the demons! And, If I gotta wait for some fat-fingered chode-owner to unleash the beasts... I'm cutting that thing off.
Don't get me wrong... If this is part of your pet-play... Have fun. But if you think that's going on without limits.... Nope.
Plus... As someone who knows the tech field.... This is ripe for misuse.
Nope.
Yes! Absolutely fuck that. Taking my bra off when I’m done for the day is one of the only things worth living for. (Obviously I’m exaggerating but it’s such a good feeling)
The only thing that comes close to that feeling is taking off shoes after a full day of hiking.
I'd were the bra with my own finger print for the vibes
"Babe, come over. I want to go to sleep and I need you to take my bra off"
"Only if you give me the key to my chastity belt"
sounds hot. like really drenched in sweat...
lol.
Any woman who has ever been drunk knows how easy it is to whip off a bra like a tshirt.
What if the person who is wearing it wants to take it off?
You beg your dom to unlock it for you. Or break it.
I would never cheat on someone with fingers that big.
I was hoping to find a comment like this
So chastity belts. And not the fun consensual kinky kind...
Can incredibly smart guys go back to creating either actually useful stuff or useless but entertaining Rube Goldberg machines?
That looks like some cool rave wear .
Real talk that bra looks sick asf
So the inventor hasn't gone past second base yet.
Yes bc we all know a woman can’t cheat with her bra on.
On today's episode of "scientist/engineer hasn't considered the human ramafications of their action" a lighter episode but still fucked non-the-less.
I’m both amazed and horrified. I hope this was some kind of proof of concept project and not the true intention of the tech. Sadly my hopes may be delusional.
Looks like a chastity kink thing
That looks like an art piece
Bait used to be belivable
I'm just gonna assume this is fetish gear and move on lol
Just me who was confused how this would prohibit hacking in games?
This is definitely just a chastity fetish thing or something this is absolutely not real 😭
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besides how weird this is, there's really no point to it. no one is gonna force women to wear this against their will, and if women do want it then that means they obviously won't be cheating, so why would they buy it in the first place
It’s for their blowup doll.
This looks more like a BDSM toy ngl
That would actually work.
She would have him take it off, and then dump him. Never cheating on him with anyone else because she'd end the relationship with him.
Exclusively to be used for fetish play
How will they react if men wear unlockable underwear only with the fingerprint of their girlfriend ?
That already exist, there is a whole market out there with chasity products for every gender.
are women phones now?!!!
WHAT IF SHE WANTS TO.. IDK.... SHOWER?!
Someone's gonna die because of impossible CPR
So um... What happens if he dies? Or is arrested and sent away before you can get the fingerorint
Probably the same as with every chastity device. Use a bolt cutter or something. Its what i would do if i lost my cage key.
I could see it used in kink.
They should also make men's briefs which could only unlocked by gf's fingerprint and watch the world burns.
Don’t kink shame.
Oh look.... It's man made horrors beyond my comprehension 😊
Yike.
Sounds like it would work well in a consensual BDSM style relationship, but I doubt that’s what the intended audience for this is.
that's fine. your girl doesn't wear panties so we're GTG homie
Don’t kink shame
Not the chastitty cage 😭
🤮
big ass thumbs they got over there
Ok, but how does the girl take off to go to sleep?
One for mens' penises is needed more than that.
Plot twist: Cheating partner doesn't have attraction to breasts, thus no unlocking is needed.
Hey, it’s only fair if they come in sets with the same fingerprint unlocking tech for a men’s chasity cage c:
Fun fact, chastity belts weren’t actual real they’re a fabrication of medeivel culture, well they weren’t real until now ig
That idea is so dumb on so many levels.. Jesus Christ..
Why does this look like something I’d find in a Breath of the Wild mod?
Ominous piano music intensifies
2027 clickbait headline: "Why Are So Many Japanese Men Missing Fingers?"
People are dying of cancer and this is the stuff money is spent on creating?! I hate it here.
Not to be racist, but of course it comes from Japan
Kinky pinky punky, Japan had a donkey!