
Mr. Sato continues to push his hypothesis that the male groin is the gateway to efficient regulation of body temperature, even if it means serious bodily harm.
Earlier this year during the scorching summer heat, Mr. Sato had the idea that the sensitivity of the male nether regions would make it the ideal place to add some cooling spray for rapid relief. While it worked for a brief moment, the intense agony that followed made the method unsuitable for most people.
Now, the days are getting colder and colder and flakes of snow have even been sighted in the Tokyo area. So, Mr. Sato’s thoughts turned once again to his pants as a way to stay warm. Having kind of learned his lesson, he paid an once more consideration to his well-being and carefully chose a warmer.
These are called Poka Poka Oshiri No Hoppe or “Toasty Butt Cheeks” in English, and they are a type of pack which generates chemical heat known as a kairo in Japan. They are widely popular in the country and can be placed in one’s pocket or adhered to one’s midsection. These particular kairo, however, are specially designed to stick to butt cheeks.
Figuring the groin and the butt are but two sides of the same coin, Mr. Sato thought this would be the best product to try out down his pants. However, it should be noted that this was done without the blessing of the product’s manufacturers and is clearly advised against on the package several times.
▼ “Please be sure to read the package before using”
Since these were designed to go on butt cheeks, each pack had two kairos inside, and since Mr. Sato would only require one for what he was about to do, he decided to recruit fellow writer P.K. into his experiment.
▼ Mr. Sato: “Here. Pull down your pants and stick this thing on your junk.”
▼ P.K.: “Okay.”
The two sat and waited for something to happen. This was different from the cooling spray which went to work immediately. They could feel the pad warming up but it wasn’t anything special.
However, bit by bit a warmth began to cascade through their body like there were dim but reliable fires burning in hearths at their cores. It was a wonderful sensation and Mr. Sato described it as “like resting your privates in a tiny bathtub full of warm water.”
Even better, there was no pain afterwards like with the cooling spray. The warming sensation simply ran its course gently until finished.
However – and this is a big “however” – we absolutely do not recommend anyone try this at home. These packs claim to heat up to an average temperature of 49℃ and a maximum of 59℃. Even though these aren’t scalding hot they can cause what is known as “low temperature burns” if the area they are applied to doesn’t get enough circulation.
Also, applying such heat directly to the testis can’t be good for these guys’ sperm counts if they ever plan to father children…
Eh, maybe that was never in their cards anyway. Who has time for kids when there’s burgers with $85 worth of pickles waiting to be eaten?
Photos: ©RocketNews24
[ Read in Japanese ]











Does your butt get cold in the winter? Try this butt heater cushion to keep you warm and cozy
Unable to learn our lesson, we blast ourselves in the crotch with cooling spray and a leaf blower
Kubipan neck pants, the hot new Tokyo style that we just made up and hurts our butt cracks【Pics】
Sexy, Sexy, Sexy: Because Real Men Wear Stockings in Winter
We literally stretch the limits of fashion with our self-made Uniqlo HeatTech dresses【Pics】
East Japan Railway announces plans to abolish magnetic-strip tickets
New Square Enix Cafe reveals Final Fantasy, Dragon Quest, Nier, and Fullmetal Alchemist menu items
Anne Hathaway creates PR frenzy in Japan after mentioning Tottori in Devil Wears Prada interview
Shakey’s Japan creates matcha mochi, Kyoto fish, and Kansai Chili Con Carne pizzas
7-Eleven Japan reinvents convenience store fruit sandwiches with new salty pink sakura peach variety
Trigun Legacy Cafe coming to two Japanese cities this summer to salute series’ original form
Starbucks adds new Fruit Gummy sweets to stores in Japan
Family Mart commits “reverse fraud” in new Giant All-Star Festival, and we couldn’t be happier
7-Eleven Japan releases a chocolate chip sandwich… that tastes like ice cream
Pump yourself up with Yokohama’s new extravagant Cool Fuel ice cream
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
Japanese convenience store shows us how to dress for the rainy season
Ghibli’s No Face continues to demonstrate his generous character growth by dispensing soy sauce
Japanese rice cooker recipe gives us a tasty new way to enjoy vegetables and wieners
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
Tokyo’s Pokémon Cafe reopens this month with brand-new sweets and Pikachu show
New Tokyo sweets shop offers 648 different mochi ice cream dumpling combinations
Colour Hunting: The hot new street photography trend changing how we see Japan
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Kanji ice cream becomes a sell-out hit in Japan
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
We try to destroy Japan’s sturdiest eyeglasses with the power of Mr. Sato’s butt【Video】
We don’t know if Japan’s Pizza-Tara is really pizza, but it’s really good
We stay out of the cold and sumo wrestle with another man pressed tight against our backs
Here we come a-waffling with a food and booze combo from Cosmos【Japan’s Best Home Senbero】