Devout "Big Bang" viewers surely remember Rajesh Kotrapali and Howard Woolwitz trying out a new gadget created by Woolwitz, who represents the horny nerdy scientist who only thinks about sex all day.
To Leonard's embarrassment, they begin kissing using the strange silicone lips as they give each other feedback, unaware of the gay vibe that exists between them, and serves as fertile ground for jokes throughout the series.
And after remembering this cute moment, there are people (in China, as always) who took this idea one step further.
It started during the Corona period, in one of the first long isolations, when a student who missed his girlfriend who is in isolation in another city, decided to invent this gadget for real, so that they could realize their love, at least partially and very siliconically, even in these difficult conditions.
The device is called MUA - after the sound people make when they blow a kiss in the air, the inventor, Zhao Jianbo, told Reuters, recalling: "I was in a relationship at the time, but I couldn't meet my girlfriend because of the lockdowns that sometimes lasted for months when it was forbidden to go out from home".
At the time, a student at the Beijing Film Academy, he did his degree project on the lack of physical intimacy in video calls, and later founded the startup company Siweifushe, which released its first product on January 22 at a price of about 260 yuan (about NIS 200).
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In the two weeks after the release of the device, the company sold up from 3,000 MUA and received another 20,000 future orders, according to him.
The MUA is very similar to the Woolwitz gadget - these are realistic lips protruding from a stand that connects to mobile phones.
To use it, couples need to download an app to their smartphones and pair their kissing machines, which they plug into the phone's charging port.
They activate the device using the app, then when they kiss it, it kisses back.
The Chinese start-up works with the simple technology that has been around for years and works well in many couple sex toys that are remotely activated - each party downloads an app, physically connects the kissing device in their possession to the mobile phone, and thus the kissing data collected through motion sensors planted in the silicon lips can be transmitted from end to end , which move together with the user's lips, play matching sounds and even warm up a bit during the activity, to give as authentic a feeling as possible.
The device received mixed reviews.
Some users said there was something to it, while others claimed it made them feel mostly uncomfortable.
Among the leading complaints was the device's lack of a tongue, whose sealed lips are indeed a bit odd.
MUA is not the first kissing device.
Researchers at the University of Tokyo invented a "kissing machine" in 2011, and Malaysia's Imagineering Institute created a similar gadget called the "Kissinger" in 2016.