BAD ENDING 004: The Tamed Mare
The two of them stood ready. If Riri took even a single step forward and leaned in, she would thoroughly introduce the mare’s pathetic pussy to the slick, gleaming taste of the genius trainer’s strap-on dildo. A perfectly tamed military horse, and one genius trainer.
“Hmm… What should I do… Giving you a reward just like this feels a little insufficient…”
“Th-That…!”
Riri deliberately hesitated over the reward. In truth she had intended to present the exclusive training contract as the final step and grant the prize then and there—but the masochistic military horse Sonia, who had completely accepted herself as an obscene warhorse and would remain Riri’s forever unless the taming was released, took the words in an entirely different light.
“Then… at least let me masturbate with Riri’s… with Master’s cock…♡ Please, just let me touch myself… Master…♡”
She had already moved from the floor to the sofa, arranging herself into a position convenient for her master to thrust into her—yet Riri was still teasing her. In that torment Sonia uttered a complete declaration of defeat, begging even for the right to masturbate. The mare military horse Sonia had acknowledged that humiliating surrender herself, and yet…
“Of course not. Obviously not, Sonia. Coming before your master… When did the Spirit ever teach you that? I will never allow it, so prepare yourself!”
“Th-That’s… Master…”
Sonia could not continue; her lips only trembled. Riri was right. A military horse must never find satisfaction before her master.
What Riri needed to do next was clear. Pull the exclusive trainer contract from the drawer, hold it out, and whisper sweetly, “Sign right here and I’ll fuck you, Sonia!”—then thrust into her, carry the pleasure-fainted Sonia to the soft queen-size bed, use those plush breasts as a pillow, knead them, and fall asleep.
Yet because Sonia possessed those devilishly captivating breasts that naturally enchanted anyone, a different plan began to bloom in Riri’s heart. Something thoroughly mischievous and sweet: ‘This… big sister… I want to torment her just a little more…!’
Right now Sonia was a military horse whose female taming was perfectly complete—but only a short while ago the D-class hero Sonia had proudly recounted the month of training she had felt at the side of the Horse Spirit.
She had never sworn an oath to serve as a military horse for a master, yet she had boasted that she had roughly learned everything she needed to. Riri deliberately brought up the training the Horse Spirit had taught her, but far from being wounded, Sonia—an irredeemable masochistic female—began dripping sticky love juices onto the sofa sheets.
“Aahn…♡ Master… You’re so mean…♡ But… but… when Riri torments me like that… my belly… twitches and flutters… Just hearing you call it Riri’s cock case… I feel like I’m going to melt…♡”
Sonia’s lower abdomen spasmed finely. That fluttering sensation. Riri’s cock case… Sonia had begun calling her own pussy that.
Something inside her head seemed to have completely melted away. Unnecessary things—her pride as a hero, her reason, memories of the past—dissolved, and the empty space was filled by a new mindset: a tamed military horse belonging exclusively to Riri, complete with five floating hearts.
It was the rebirth of the busty-breasted girl, Sonia.
‘Riri… Master… Military horse… Sonia’s master…!’
“…Haa… Haah…♡ Sonia…!”
Riri barely clung to her reason. She had to resist the temptation radiating from that adorable mare military horse’s breasts, from those eyes of perfect submission. A loyal warhorse who looked only at her, who even declared herself a masochistic slave while begging to be fucked… Riri’s hands and feet trembled. Behind the mask of the genius trainer was the excitement of a single young girl.
‘I want to run over and hug her tight right this second… but if she’s a masochistic slave military horse… if she’s a high-level warhorse… then the reward has to be postponed, right…?’
Riri decided to deliberately make her writhe and plead, to drive the thirst to its absolute limit, and only then repay her with consecutive climaxes.
Before that, among the items she had brought for the female military horse already burning like an active volcano, Riri set aside the strap-on dildo vibrator “mounted” on her lower body and instead took out a similar but different object, holding it up for Sonia to see.
“You lewd masochistic military horse. Since you’re such a careless warhorse who might start masturbating and cum on her own again at any moment… for a Sonia like that… I’ll do this…!”
Riri lifted a soft leather blindfold in front of Sonia’s face. It was a deep, calm black that swallowed every ray of light, like the night sky the instant before darkness settles.
The faint yet sweet scent unique to treated leather seeped into Sonia’s nostrils. Riri used the blindfold to completely seal off once more the vision already blurred by lust.
Click—the buckle locked with a sharp metallic sound that shattered the heavy silence of the room.
The moment visual information vanished completely, every other sense of Sonia’s stood on edge like a honed blade.
Riri’s shallow, hot breaths washed over her ears like waves; at the tip of her nose the dense fragrance of Riri’s body scent mixed with pheromones blooming from excitement slowly paralyzed Sonia’s reason.
Her skin grew so sensitive it could detect even the faintest currents; every time Riri took a step, the ripple of air raised goosebumps.
“Ha… Haa…♡ If… if you do this… I can’t see Riri… Master’s cock… Uu… Sonia’s master…♡ Show me your cock…♡ Riri’s cock that makes my heart feel like it’ll burst just from looking… Cock… show me…♡”
Uncontrollable desire spilled from her mouth together with sticky saliva.
At Sonia’s pleading, Riri’s voice trembled faintly. Any attempt to hide the excitement had been futile from the start.
“H-Hmph… So the military horse is a masochistic slave who only knows cock… You’re a total pervert…!”
Riri desperately tried to maintain a trainer’s dignity, yet the thin tremor mixed into her voice and the flushed heat could not be concealed.
To Sonia, whose hearing had become extremely sharp after her vision was blocked, that tremor was the finest aphrodisiac nothing in the world could replace.
Without realizing it, Sonia parted her thighs a little wider, finishing her preparations to receive the still-unseen weapon of her master.
“Yeees…♡ Sonia is Riri’s masochistic slave… Please teach Riri’s… Master’s cock… to this slave Sonia’s pussy…♡ I can’t… I can’t anymore… This masochistic pussy is so ashamed it’s leaking female love juices on its own…♡ Please plug up this pathetic pussy… Riri…?”
The mouth not gagged by a ball gag drooled clear saliva onto the sofa sheets in a state of complete fascination and heat.
From her lower lips sticky love juices already stretched in long silver threads while the female military horse Sonia desperately pleaded with the master she was meant to serve.
The figure of the D-class hero who had once grabbed the paperboy-capped girl’s wrist and shouted ‘Run away right now!’ as they fled the Horse Market was nowhere to be found.
In Riri’s cozy nest only a single female military horse remained—one who yearned for her master’s mercy and violence.
Riri took one step closer to the warhorse whose body trembled obscenely.
Around Riri’s waist the black, gleaming strap-on vibrator was firmly fixed. She brought the tip—the smooth, hard-textured glans—to the blindfolded Sonia’s cheek and pressed it with little pokes. The cool silicone sensation met Sonia’s hot skin in vivid contrast.
“Huu… Nnh… Having such a careless military horse as a master is… really inconvenient… What are you going to do about this… Sonia…?”
“This is… Master’s… Riri’s scent…♡ Anything… just give the order… Master…♡”
Though it was a hard inorganic object pressing against her cheek, it was at the same time a strap-on dildo vibrator that lightly stimulated the pussy of the wearer, Riri.
Riri’s love juices seeping from the base of the dildo ran all the way to the tip of the glans and touched Sonia’s cheek. At that dense fragrance Sonia sank even deeper into the state of [Beloved Master…♡].

Nothing would come out, yet Sonia opened her mouth and flicked her tongue as if to taste Riri’s strap-on vibrator.
“Th-That’s right! This is exactly the cock you begged so hard to be allowed to masturbate to just from looking… my cock, Riri’s…?!”
“Riri’s love juices… Just the scent alone makes me want to masturbate♡… Please let me… Riri’s… Riri’s…♡ As a military horse… as Riri’s exclusive military horse… please let this female warhorse serve Riri’s cock…♡”
The instant Sonia’s tongue was about to touch the tip of the dildo, Riri flustered and twisted her hips away.