Chapter 55 Beast-Person Heat and the Tremble-D✱✱do-Buddy Research
Edited by: Kanaa-senpai
This all went down after I had negotiated the “experiment” with Laika, the dog beast-person adventurer, and also paid a visit to the Beast-person Association to ask them to recruit more participants. I was just relaxing in my room, thinking about getting some sleep, when I heard a loud pounding on the back door—no ringing of the bell, just frantic knocking.
Lily and I exchanged a look, and I stood up to open the door with a bit of dread. Standing there was Laika, her eyes blazing with an intense gleam, her breathing heavy and ragged. She was a total trespasser, looking like a complete creep. I honestly deserved an award for not screaming out loud.
”Huuuh, huuuh!” she panted.
”L-Laika! What are you doing here so late?” I asked, trying to sound calm.
”It’s, it’s the Heat (Hasshōki), I got it!” she choked out, her voice punctuated by a needy little sigh.
”O-oh, right, of course. Well, come in, please,” I managed. Once I ushered her inside, she sat down on the floor, her shoulders trembling uncontrollably. Even Lily looked genuinely shocked at her utterly abnormal state.
”I-I’m sorry, for coming, so late…” she whispered.
”No, no, I’m the one who asked you to help with this. Um, do you want some water, just to start?” I offered. I’d noticed the sweat dripping from her, but she shook her head wildly to refuse.
”N-no need!”
This looked serious. I knew I had to start the “experiment” right away, so I started searching for my paper and pen. Oddly, Laika started following me, sticking right to my heels.
”U-um, Laika…?”
”What is it?” she asked, her voice a little too sweet.
”You can sit still, you know.”
”Yeah…” she murmured.
Misunderstanding something completely, Laika would sit right at my feet. When I moved, she’d follow, and sit at my feet again. What the heck was this? I was genuinely flustered by this image of a “Loyal Dog”.
She was wagging her tail like crazy, her ears were drooped, and she was looking up at me with those big, moist, puppy-dog eyes—like a stray. I had the sudden, powerful urge to pat her head, but I knew that was probably a trap. If she took that as encouragement, I’d definitely be pounced on right now.
”Are you, are you ready…?” she asked, impatience thick in her voice.
”A-alright, then. Please go ahead. Use this tool,” I said, handing her the Tremble-Ddo-Buddy.
”Okay! Watch me, please…”
Laika took the vibrating toy and immediately ripped her clothes off where she stood. There was no hesitation; she was practically flaunting herself. Her eyes were still burning, and she was staring up at me.
”Huuuh! Huuuh!” she panted, her whole body vibrating.
She wasn’t going to just dive right in, thankfully. She knelt down and placed the Tremble-Ddo-Buddy between her thighs. She looked at it with hot, breathless anticipation, then flicked the switch. With a sharp click sound, the toy started buzzing with a loud, distinct [VRRRR].
”Ah, ah, ah! Awoooooooo!”
Suddenly, Laika arched her head back and let out a howl, just like a dog baying at the moon. She squeezed the Tremble-Ddo-Buddy tightly between her legs and leaned forward slightly, thrusting her hips back. Her whole body shivered, and her cute little chest bounced.
It seemed she had already reached climax. I could tell by the pained yet blissful expression on her face. I hastily scribbled notes on the paper. I had to at least record the number of climaxes and the time elapsed; anything less would be disrespectful to Laika’s cooperation.
”Haah! Haah! Nghh…!”
One climax wasn’t enough to cool her down. She moved the Tremble-Ddo-Buddy around between her legs for a bit, then abruptly pushed it deep into her internal passage.
”Fuuuuuuh!”
Laika’s eyes went wide, and she threw her head back again. Sweat poured from her forehead, down her chin, and dripped onto the floor. A loud splash! sound came from between her legs, and she released a massive spray of fluid.
It was her second climax. Her orange, same-colored tail thrashed wildly, and her dog ears twitched with frantic excitement.
”Aah! Nghh! Grrrrrrrrr…!”
Laika gasped out a desperate-sounding moan. A low, beast-like growl, one you wouldn’t expect from her relatively small body, rumbled out of her. I heard the grinding sound of her teeth, and the look in her eyes sent a shiver down my spine.
”Gauuuuuh! Gaaaah!”
With another set of growls, her tail shot out stiffly and bristled, and she reached a third and fourth climax, one right after the other. Each time, more fluid was sprayed, staining the floor. It’s normal by now, so I didn’t mind, but the intensity made me want to intervene. I couldn’t, though. I promised not to, and more importantly, it would ruin the meaning of the “experiment.”
”Nghh…”
I caught a strange smell and sniffed the air: a thick, musky scent of a female hit my nose. It was definitely coming from Laika. It was a musky scent that felt like it resonated right in my groin, the kind that could make you dizzy and lose your reason.
It was likely a pheromone or something meant to attract a male. As a mere human, I was barely able to resist, but I wondered what would happen to other beast-persons, whose sense of smell was several times better than mine. It seemed the “Heat” cycle wasn’t just a simple increase in libido.
”Huuuh! Huuuh!”
What followed was an absolutely ferocious round of self-pleasure. With her right hand, she frantically pumped the Tremble-Ddo-Buddy in and out, while her left hand forcefully kneaded her chest, milking her breasts. Painful-looking red finger marks were pressed into her small, cute chest, and her nipples were tugged, twisted, and crushed until they were swollen and red.
Laika was completely lost in the heat rushing through her body. The wild need that should have made her pin down a male and move her hips like crazy was now turned inward—she was touching herself between her legs, rubbing her chest, and circling that sensitive little spot at the top.
I sat quietly nearby, writing everything down, counting every tremble and shiver that told me she had just finished another wave of pleasure. I couldn’t help but admire how hard this brave wolf-girl was fighting her own instincts.
”Awoooooo! Awooo…! Awoooo!”
Suddenly her movements changed. The left hand stopped being rough with her nipples and that swollen nub; now it was gentle, almost like she was soothing the red, tender skin she had just been pinching.
Her right hand was still sliding the Tremble-Ddo-Buddy in and out, fast and steady. I was a little worried the friction might hurt her, but it looked like the craziest part of her heat had calmed down a little.
While I was thinking that, Laika looked up at me. Her golden eyes were half-closed and shiny, like she was begging for something.
”Awooo… Grrrr… Kyun, kyun…”
A thin string of drool slipped from the corner of her mouth. My throat felt tight all of a sudden. I tried very hard not to imagine the wrong things and just kept writing as fast as I could. She wasn’t suffering anymore; she was clearly enjoying every second now.
So this is how she keeps herself from jumping anyone, I realized. Once she gets past the really ferocious beginning, she can control it pretty well. The toy really helps her survive that first scary stage.
(For a moment I wondered what a heat would look like without the toy… but I quickly pushed the thought away. No way could I handle that kind of research—and I definitely couldn’t ask anyone else to.)
Laika’s breathing slowly calmed. “Huuuh… huuuh…”
She had spent almost the same amount of time on this softer, pleasure-only phase as she had on the wild one. Her eyes looked clear again. She even wiped her mouth with the back of her hand, a little embarrassed.
”Is it over?” I asked softly.
”Mmm… almost. I want to feel completely satisfied just one more time… I can hold back now, so I don’t really need to, but…”
It was the same kind of intense but still normal self-pleasure that Lily and I sometimes do during our usual experiments. Laika kept moving the toy inside herself while she pinched and rolled her nipples, stroked her chest, and played with that sensitive nub.
”Ah, ah, ah! Ngh! Awoooo!”
She howled again—happy this time—and her whole body shook through two more climaxes. Finally, with a long, satisfied sigh, she pulled the Tremble-Ddo-Buddy out and switched it off. The toy glistened, completely covered in her warm, sticky juices.
”Um, I’m sorry, I’m finally starting to feel embarrassed…” she confessed.
”Ah, no, I should apologize. Um, I want to hear your feedback, but do you want to take a bath first?”
”Yes, please,” she said, her face bright red. I’m not going to lie; I was far more aroused by her flushed, post-bath look than by the whole intense observation. And after she got out of the bath? Well, then it was time for the fun ‘sexual harassment’ part. Though, honestly, my feelings of apology did win out… mostly.
”Alright, so nineteen climaxes, about two hours in total? How did that compare to your usual?”
”T-that many…? Well, um, I have to say, it was extremely productive. Yes…” she stammered.
”Productive…?”
”Well, I mean, there was a good… sight right in front of me, wasn’t there?” she muttered.
She pointed a finger—which was trembling and red for entirely different reasons now—at me after her bath, and I finally understood everything. Of course! It couldn’t be helped due to the need for record-keeping, but the conditions were completely different from her usual solo “release.”
”S-so, is it usually a bit milder, then?”
”Hmm, the method isn’t much different, but it usually gets wrapped up in about an hour. Today, my womb was throbbing constantly, and it wouldn’t stop, so I was honestly getting a little desperate.”
”And you’re saying your Heat cycle is considered one of the lighter ones, Laika…?”
”Yeah. People who get it bad would probably pounce on Kento the moment they saw you,” she stated matter-of-factly.
”Oh. C-can I possibly hire you for an escort job in the future, Laika-san?” I asked, immediately transitioning to self-preservation mode.
”Ah, yeah, I don’t mind. I think I can hold back from attacking a civilian, even during my Heat. But maybe it’s better to bring Tania-neesan as well… There are people stronger than me in the Beast-person Association.”
This is a huge problem, I thought, finally realizing how foolishly optimistic I had been.
—
Summary:
Kento’s research on Laika’s extreme beast-person ‘Heat’ cycle spirals into a frantic, intense observation. Laika, overwhelmed by primal sexual impulse and pheromones, utilizes the Tremble-Ddo-Buddy to achieve multiple, explosive climaxes in a desperate attempt to control her urges. The ‘experiment’ reveals the sheer, dangerous intensity of her condition, forcing Kento to realize the gravity of his research and the incredible endurance of Carl, his employee’s husband.
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Character Insight:
Kento is initially driven by ‘scientific’ curiosity but quickly devolves into flustered embarrassment and barely contained arousal, cementing his nature as an awkward researcher in an erotic world. Laika’s shift from a primal, growling beast to a sweetly needy pet after multiple climaxes shows the dual nature of her beast-person biology during her ‘Heat’.
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Behind the Scene:
The ‘experiment’ setting is deliberately awkward to heighten the comedic and sexual tension. The comparison to Carl is essential world-building, showing the extraordinary challenges of a human/beast-person relationship during the Heat cycle. The intense description of Laika’s climaxing and the use of the Tremble-Ddo-Buddy is a means of exploring a fantasy creature’s sexual biology.
Notes:
• Lily – the sl*ve and primary experiment subject for the magic shop, ‘Harvest.’ She has striking pink hair, Blue eyes, medium breasts, which the Protagonist associates with being ‘wanton’. She has a working knowledge of magic, which she kept hidden from the slave trader.
• Kento – The owner of the magic tool shop ‘Harvest,’ which discretely sells adult goods. He’s a former overworked, ordinary salaryman from modern Japan who was suddenly transported (isekai’d) to this fantasy world. He has dark hair and an unremarkable appearance, typically wearing a plain, slightly suspicious-looking shop owner’s clothes looks like Kazuma Satou from certain series. He has a minimal amount of magic power, enough to craft his specialty items.
• Tania – An Elf adventurer who, despite her race’s reputation for low sex drive, is secretly quite passionate. She initially seemed ‘wasted’ (emotionally dry) to her friend Raika, but was easily introduced to the pleasure-items sold at ‘Harvest.’ She is easily embarrassed and attempts to maintain a dignified facade, despite her recent, frequent purchases. She wears practical but light armor over a simple cloth tunic and short pants, highlighting her grace and agility. Her primary relationship is one of friendly senior-junior with Raika.
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Edited by Kanaa-senpai.
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