Chapter 65 The Faithful Dog Laika An Estrus Master’s Trial
Edited by: Kanaa-senpai
After I’d finished reporting to my mentors and the Beast-person Association had cycled through a round of helpers for their ‘Estrus’ periods, I was scrambling to complete my thesis before the big Ddo-Buddy Trial.
I’d already finished collecting the data, so I didn’t actually need any help. I’d even left Lily in charge of the shop, and Tania had gone back to her adventurer duties. Yet, there was still one woman faithfully sitting by my side, like an utterly devoted dog.
”Uh, Laika…? I’m finding it really hard to concentrate when you just stare at me all the time…”
”Ah, s-sorry! You’re right, I’m so sorry…” she murmured quickly.
It was Laika, the Dog Beast-person Adventurer. Her orange dog ears, the same color as her hair, dropped in a soft, pleading slump, and her eyebrows sagged into a pathetic V-shape. It was all so incredibly adorable that I instantly felt terrible for having said anything at all.
”A-anyway, if you need something, just tell me. I’m listening…”
I couldn’t help but speak to her, seeing that tightly curled tail of hers that signaled deep apology. In an instant, her ears shot up with a ‘pikon!’ sound, and her tail began to wag slowly sideways, picking up speed little by little. She was so transparent. And so undeniably cute….
”E-excuse me, um, listen…!” she whispered eagerly.
I gently stroked the head of the girl who was clearly struggling to find a topic of conversation. Her tail began to thwap so fast it looked like it might tear right off! Damn it…! If only I didn’t have this silly thesis, I could simply spoil this little puppy to my heart’s content…!
”Ah…! S-sorry, listen, though…”
”Oh? Tell me anything you need to.”
”Yes. Um, a-actually, my, my ‘Estrus’ seems to be coming soon again, don’t you know…”
”Ah, so that’s why you’ve been sticking so close. I thought something was up with the distance.”
”Huh?! I didn’t mean to! I’m sorry, am I annoying you?!” she protested with a whimper.
”No, is it annoying to be called cute?” I asked, deadpan.
”C-cute…!” she repeated, stunned.
Right, has a whole month really passed already? Ever since Laika first broke the ice, we’ve had Beast-person women in ‘Estrus’ coming to the shop almost every single day. I’ve become quite the Estrus Master, I suppose.
I gently squeezed her ear with the hand that wasn’t holding my pen, and Laika closed her eyes, letting out a cute little sound, ‘kū~n♡‘ a soft, melting whimper. I stroked her cheek with my index finger, enjoying the soft, plump feeling. I rubbed her back and then gently stroked her tail with my cupped hand.
At some point, Laika had buried her face into my side and rested her head on my lap. She pressed her nose against my belly and sniffed deeply, snif-snif. Then, her voice slightly muffled, she asked me the big question.
”Um, hey…”
”Hmm?”
”When my ‘Estrus’ comes, will you help me let it all out?”
”Not with the ‘Tremble-Ddo-Buddy’?”
”No…”
”Ah, well, yes. I’ll do it.”
”Ehehe, I won!” she cheered.
Wagging her tail furiously, Laika slithered happily through the tunnel of my arm and settled belly-down on my lap. Her Faithful Dog boobies, somewhat fuller than Tania’s modest chest, were pressed right against me.
I could feel her womanly softness and the lean, supple muscle of a beast just beneath. She had a decent weight for her size and a high body temperature. Well, I was definitely getting hard. She couldn’t possibly be unaware of that fact stabbing her in the stomach, yet she showed no intention of moving from my lap.
”Hey, tell me something…”
”Yeah…?”
”Are you sure that I am the one you want?”
”‘By’ you is fine, but ‘you’ is what I really want, yeah?” she affirmed.
”Why, though?” I asked, kneading her little butt as I continued to edit my thesis draft. I felt compelled to ask this somewhat tiresome question because of the whole ‘Resonance’ accident.
”Hmm, that’s a hard question to answer. There are lots of reasons: you’re human, but you work so hard for us Beast-people, and you’ve made the shop quite successful, for example…”
”But?”
”But the main thing is probably how you spend time with me like this, you know?”
”Is that all it takes?”
”Yeah. I think Lily-sama and Tania-neesan probably feel the same way…”
”I see…”
”Yes!” she exclaimed.
Saying that, Laika wiggled on my lap and rolled onto her back. It seemed she wanted her belly rubbed now. Perhaps because we were finally alone or because her ‘Estrus’ was imminent, she was incredibly honest and completely unreserved today.
Well, since she’d put it like that, I had no choice but to indulge her. I happily and unreservedly rubbed her stomach. I slid my hand under the hem of her clothes to feel her smooth skin directly. I moved upward and massaged her chest. Ah, you’re not wearing underwear either, are you….
I expected her to be angry, but she just giggled like it tickled, gazing up at me with an entirely pleased smile. Her soft, jiggly, adorable swell. Her nipples were delightfully puffy. This was quite the luxurious distraction from writing a thesis, indeed….
* * *
”Oh my, you two are getting along very well, aren’t you?”
Lily, who had just returned as the shop’s business hours ended, commented when she saw Laika clinging to my back. I felt a little awkward, thinking they’d been flirting while she was working, but Lily didn’t seem to mind at all.
”Ah, she says her ‘Estrus’ is approaching…”
”It seems like more than just that, but it is a wonderful thing that you’re getting along so well,” Lily observed.
”Is that so? I feel bad, in a way. I left the work to you…”
”Hehe, your writing seems to be progressing, so it’s quite alright. Of course, I am looking forward to my own reward later, darling,” she winked.
Lily came closer, checked my work, and then pressed her lips to mine with a soft chu sound. Thinking it was an invitation, I reached out, but her body slipped away just before my hand could make contact. She then casually began preparing to go out.
”Huh, are you going somewhere?”
”Tania-sama should be back, so I’m going out to eat with her. If not, I’ll check on Aki-sama or Miranda-sama.”
”Wait, then I should come too…”
As I started to say that, Lily pointed behind me. I realized Laika had begun breathing heavily, hoo-hoo♡, and her hips were starting to twitch rhythmically.
”Ah, I guess it’s starting…”
”It certainly seems so. Will you be needing Miranda-sama’s aphrodisiac?”
”No, my homemade version will probably be fine. I’m sorry again for the trouble…”
”It’s no trouble at all. Tania-sama and Laika-sama and I have been discussing how to ensure you get one-on-one time with each of us, so it’s perfectly fine. I’ll be back in a few hours, and I’ll be looking forward to you then, darling♡”
”Right, I’ll do my best…” I promised.
With that, Lily finished her preparations and slipped out the back door. I was left with the heavily breathing Laika and my stacked-up thesis pages. Her warm body pressed against me from behind. When I turned around, she settled down on my lap.
”Vooouuuh…♡♡♡”
”Erm, are you alright, Laika?”
”Waooouuuh…♡♡♡”
She was clearly not alright. Her symptoms were closer to the ‘Resonance’ incident than to the previous ‘Tremble-Ddo-Buddy’ verification. She growled like a beast, rubbing her body against me and thrusting her nose into my neck.
”There, there…”
”Waouh…♡ Nchoo, nchu…♡♡ Lick…♡♡♡” she stammered, kissing me.
When I patted her back and gently swayed her body, Laika couldn’t help but clamp her mouth onto mine. She then licked all around my lips, and her tongue smoothly slipped inside.
Responding to her, I touched her chest, subtly removing her clothes. She obediently held up her arms for me, and her chest appeared purun! I pecked at her lips with soft, chuchu kisses, and I even removed the shorts she had been wearing down below.
”Grrrrlrrr…♡♡♡”
”Good girl, such a good girl.”
Perhaps because we’d exchanged saliva, Laika seemed slightly calmer. She looked up at me with an inquiring gaze, dropping her ears while sitting up on her knees in a submissive posture.
I realized this was the kind of reaction I would get. Apparently, a Beast-person’s ‘Estrus’ symptoms change depending on whether the partner is their first or a regular partner. They refer to them as ‘Prey’ and ‘Mate’ amongst themselves, but I think ‘Owner’ might be closer to the truth….
”Give me your paw (hand),” I commanded.
”Woof…♡♡♡?” she asked, cocking her head as she obeyed. I made her ‘Give me the other paw’ and ‘Lie down,’ and she started to get impatient. But she continued to follow my commands, carefully watching my face without showing any signs of rebellion.
”Give me your toy,” I teased.
”W-woof…♡♡♡” she responded, panting.
”And now, ‘Stay.’”
”Grrrlruuh…♡♡♡”
Laika crouched down, spreading her legs in an M-shape, and I put her arms behind her head to fix her in place. It was a pathetic, embarrassing pose, but she would not disobey me. I stripped off my clothes, and I felt the heat of her gaze burning into my crotch.
”Still ‘Stay,’ little doggy…”
”Kūūūūn…♡♡♡” she whined.
I stroked her chest, then her belly. I kissed her as the impulse took me, and I reached my hand into the space between her legs where her warmth was present. The area was ready for me to see. As I rubbed her, gooey, gooey, her fluid poured out, and her hips began to twitch, heko-heko.
”Hooo-hoo♡♡♡ Hooo-hoo♡♡♡”
”Not yet, ‘Stay,’” I whispered.
As I spoke, I slipped a finger into her warmth. I swirled it around, mixing the fluid until her inner walls began to contract and grip, then I pulled my finger out. The sticky fluid strung out in a long, glistening thread.
”Alright, now, ‘Go’!”
”Gauh♡♡♡♡!!!” she bellowed.
As soon as I wiped my hand and gave the command, she lunged at me with a ferocious momentum, sinking her teeth into my neck. This time, it wasn’t a metaphor. She left teeth marks all over, occasionally sucking to leave a kiss mark, licking me all over, and sniffing, snif-snif, at my scent.
This was different from both the ‘Resonance’ and the ‘Verification.’ A slight part of her seemed to be holding onto her sanity. Perhaps this was the level of her desire when she was usually self-pleasuring.
I thought I’d be overwhelmed immediately, but Laika began to bury her nose into my crotch. She pressed her face against my throbbing area, sniffing it obsessively.
”Snif-snif♡♡♡! Snif-snif-snif-snif♡♡♡!!!”
She didn’t mind that the fluid was getting on the tip of her nose; rather, she sniffed happily with a look of rapture. Finally satisfied, she began to taste it.
”Lick, chu♡♡♡! Chu-chu-chu♡♡♡!”
She licked up the fluid and kissed the tip. With a loud sound, she kissed the area too. She licked it slowly, savoring the taste, sliding her lips over it as if imprinting her affection. Occasionally, she’d gently nip me with just her teeth. A shiver ran through my waist.
”Nguh, nnh, nnh♡♡♡♡!” I groaned.
Then, she suddenly took the tip in her mouth. Her mouth was small, so she couldn’t take much depth. She bobbed her head, gup-gup, her lips stimulating the area around the head. I saw her tail wagging furiously on top of her small, thrusting hips.
”If you’re that enthusiastic, I’m going to finish immediately…”
”ーーーッ♡♡♡! Gup-gup-gup♡♡♡!” she choked, pleading for more.
It seemed she meant, “Let me have it!♡” Laika began to work more intently. Along with the movements of her lips, her small tongue explored the area. If that was what she wanted, I wasn’t about to hold back.
”Alright, I’m going to finish now!”
”〜〜〜〜〜ッ♡♡♡♡♡” she cried, her rapturous gaze pleading, “Just hurry up and do it!♡”
As her head bobbed up and down, the speed of her tail increased. Without holding back, I released into her mouth.
Spluuuuurt!!! Spurt-spurt!!! Spuuuuuuuurt!!!! Spluuuuur-spluuuurt!!!! Spuuuuuuuurt!!!!
”Nnnh♡♡♡!!!” she moaned.
Laika’s body trembled with delight as she received the torrent. Her lips squeezed tightly around the tip as if to ensure not a single drop was spilled. She stimulated the area with both hands, making sure every last bit ended up in her mouth.
Eventually, the flow stopped, and she pressed her thumb against the area. She sucked, chuu-chuu, to get the very last drop, then slowly sat up.
”Nmm♡♡♡!” she purred.
She pulled my arm, helping me sit up. She looked up at me and opened her mouth wide. It was full of the milky fluid. She moved her tongue, bringing it forward to show it off.
Finally satisfied, she closed her mouth and, with a delighted look, swallowed it, glug, glug. She drank it all down and then opened her mouth once more. Naturally, nothing remained. The red, moist membrane of her mouth looked strangely sensuous.
”I drank it! Are you happy…♡♡♡?” she asked, a little surprised to hear her speak.
I was slightly surprised to hear her words. Had her ‘Estrus’ subsided? No, her eyes were still gleaming brightly, and the blush on her cheeks was only deepening. I had to conclude that when mating with a ‘Mate,’ they retain a degree of composure even while in heat.
”Yes, Laika is a very good girl.”
”Wahoo♡♡♡!” she barked happily.
When I stroked her head, she jumped onto me with delight, rubbing her body against mine vigorously. She pressed her forehead against me, guri-guri, making it hurt just a little.
”Hey, a reward♡♡♡! A reward♡♡♡!” she begged with slightly slurred speech.
”I know, I know. Then ‘Roll over.’”
”Woof♡♡♡!!!” she obeyed, a little jumpy.
I gave her the command she was begging for with her childishly lisping pronunciation, and Laika immediately flopped onto her side. She spread her legs, showing off her warmth in a dog’s gesture of submission.
Her eyes were filled with expectation. The fluid was dripping. Her tail was thrashing wildly. The night was still young.

—
Summary:
The Protagonist’s thesis work is hilariously interrupted by Laika’s intense, love-fueled return to ‘Estrus.’ Her deep, dog-like devotion and submissiveness, amplified by their ‘Resonance,’ make her a willing, demanding pet. Lily leaves to give them privacy, recognizing the inevitable. The chapter culminates in a powerful scene of oral submission, where Laika willingly drinks the Protagonist’s seed as a form of intense bonding and reward. The night promises further intimacy as Laika demands her next command.
—
Character Insight:
Laika’s behavior during ‘Estrus’ is profoundly affected by her bond with the Protagonist, shifting her from a mere ‘Prey’ to a devoted ‘Mate’—or perhaps even a ‘Faithful Dog’—where submission becomes her form of sexual dominance. Her desperate need for contact and her willingness to follow commands, even embarrassing ones, demonstrates her absolute and utter loyalty. She is sexually active and enjoys the dynamic.
—
Behind the Scene:
The chapter sets up a more complex dynamic for Beast-person intimacy, distinguishing between the standard estrus treatment and the profound, bond-altering effects of the ‘Resonance’ phenomenon. The ongoing thesis and the ‘Ddo-Buddy Trial’ serve as a backdrop for the growing personal relationships, highlighting that even in this busy, research-focused life, the Protagonist cannot escape the demands of the Beast-person women who love him.
—
T/L:
¹ [Laika is the name of the first dog in space, which further cements the ‘faithful dog’ symbolism. We’ve chosen to use the original name Laika as it is already a common English name.] ↩
Notes:
• 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.
• 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.
• Laika – The beastwoman dog.
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Edited by Kanaa-senpai.
Thanks for reading.
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