BAD ENDING 004: The Tamed Mare
Whether her juices were dripping freely or the strapped-on dildo was being shoved back toward her by the press of those lewd, yielding folds, Riri paid it no mind — she simply kept rolling her hips until slick flesh met slick flesh.
Two females, both worked into a frenzy. Their heat gauges, on the verge of burning out entirely, had already climbed to their absolute peak.
Unintentionally, yet long since complete: five hearts, fully filled. The mare… Military Horse Sonia. Loyalty toward Lady Riri, submission… and service… all of it packed tight into five solid hearts.
Molding… coating… or locking it in place.
Riri pounded her hips wildly, unconsciously sealing the taming state so that the contents of the hearts floating above Sonia's head could never leak away.
"Hah… heeh…♥ Military horse… Riri's military horse big sister… big sisteeer…♥"
Technique and experience both lacking, Riri could only thrash her hips with frantic earnestness. Even so, she managed to deliver fierce stimulation to the sensitive flesh of her lewd military horse — enough that she herself was drooling just as freely.
Pressing hard into the vaginal walls of a female military horse no one else had ever touched, Riri smeared the flowing juices and the drool spilling helplessly across those breasts with her palms, coating the glossy, sticky sheen over Sonia's chest. A genius trainer — and a female in her own right.
"Riri…♡ Ririi… ih…?! Master…♡ Cock… more… more… heh…?! …♡"
As if responding to the effort of female Riri — as if that clumsy pussy-thrusting felt like an assault dildo — the body of the female military horse, wrists and thighs bound in leather restraints, those lewd breasts bouncing, began to tremble.
Even as she lifted her hips just enough to receive Lady Riri's cock properly, Riri's female military horse deliberately went deeper, more comfortably, more naturally — making sure Lady Riri felt no inconvenience, voluntarily setting her own position lower from the very core of her heart, and beginning to serve.
Squelch… squelch… thock… thock…
Riri had long since let go of her mind. Before the strength drained from her eyes, her body remembered only a single sentence. Push the vibrator-mounted dildo all the way in, and press her own lewd female pussy flush against Sonia's — like a kiss…♥
"Hah… heeh… it's coming all the way inside… Ririi…♡ Haah… haah… haaang…♡ Nngh…! Lady Riri's cock… is kissing… this lewd military horse's womb…♡"
Riri's special privilege: locking the taming state so it would never come undone. Of course, the very person who had woven loyalty into the enhancement of her military horse's stats was now only fiddling with the waist straps of her strap-on, thinking of nothing but pressing their lewd pussies together — gazing at her female military horse with eyes gone slack and empty of force.
"…♡ I'm sorry… for finishing first… Master… when Lady Riri makes me all wet and messy with her cock… this Sonia… has no choice but to come…♡"
"…Military horse big sister… military horse… big sister…♥"
The only thought left in her head was that single one. Riri simply kept rolling her hips like a beast thoroughly enchanted — like a female.
"Nngh… heeh… big sister… I think I'm going to… come… Riri… is going to come… for Sonia big sister…?"
"…♡"
A loyal five-heart military horse, receiving her trembling master exactly as she was. Against the lewd flesh of the military horse squeezing tight around her, all Riri could do was accept the way the strap-on — which had been trembling along with her — was instead locking firmly into place.
Shaking as one body, as one matched set, until the dildo fixed itself. Thanks to Riri's frantic thrusting — brief as it was — the share of the dildo that had been split evenly between her and her lewd big sister had shifted.
"…Ahheh…? Eh… heh…♥"
The moment the glossy black dildo locked solidly into her sturdy mare big sister instead, Riri was thrown off the "baseline" they had been sharing.
The object that had been fine while they rocked together now began pressing hard into Riri's own flesh from the opposite direction.
"Ehiik…?! Hih…♥ Uh… big sisteeer… haang… haaang…♥"
The loyal military horse's moans — things like "I'll practice making my pussy perfect for Master's cock…♡" — had long since stopped reaching Riri's ears. All that remained was the genius trainer who had accepted the fact that she could become a female at any moment… Riri the female.
"Big sister… military horse… Sonia big sister…♥"
"Riri… Master…♡"
What they were doing was dense lesbian sex, grinding their womb entrances against each other… or, put a little differently, a bonding session with the "military horse" she had only just contracted…
If she had refused the Horse Spirit that had suddenly appeared from among the junk and offered to teach her the military horse privileges…
If she had refused the military horse privileges the spirit explained…
Even if she had learned them, if she had not helped the girl in the paperboy cap at the mare exchange…
Even if she had helped, if she had not climbed into the limousine of Riri — who claimed to be a genius trainer and traveled with a part-time android bodyguard…
If any of that had gone differently, there might have been another outcome for Sonia, the D-class hero of Sky City… but none of it meant anything anymore.

"Hi~ everyone! I'm Cutie Heart! Wow, that was an incredible race! Especially Sonia's final spurt — I thought my heart was going to stop! She's so pretty and so strong… isn't that just unfair? I think I'm becoming a fan!"
Cutie Heart's face was full of pure excitement as she shouted her impressions into the commentary booth mic in that bright, bubbly voice. Backed by the enormous sponsorship of Shinohara Heavy Industries, Mare Idol Racing had grown into a full-blown cultural icon of Sky City.
Once the race ended, blackout panels began slowly sliding shut over the vast domed stadium. As the heat of the hard-fought race cooled, the arena finished transforming into a glittering stage for the next act — the idol performance. The mare girls who had sprinted the track, still sweating, caught their breath and waited for the show to begin.
When the blackout panels sealed completely, the stadium plunged into pitch darkness. Throughout the stands, citizens raised glow sticks and air sticks that bloomed in every color, painting the dark. Like stars filling a night sky, waves of light rolled inward from the circular outer rim of the arena.
Among the countless points of light, one purple glow shone with particular clarity. It came from the waiting area where the girls who had just finished racing were gathered — from the exact spot where today's winner stood.
"…♡ Of course… I won again."
It was too dark to make out her expression, but Sonia's voice carried a mix of satisfaction and languid excitement. The LED lamps fixed to her skintight purple racing suit traced the perfect curves of her body with a soft glow. There might have been a few too many lamps, but that overwhelming figure made every excess irrelevant. Today's first-place winner: [Military Horse] Sonia.
Sky City's cultural researchers all said the same thing. If today's champion — [Military Horse] Sonia — had never existed, if she had never won while wearing that unique, eye-catching outfit, Mare Idol Racing would have remained nothing more than ordinary gambling horse races.
In the early days, the racing suits were plain swimsuit-style bodysuits and nothing more. No glittering decorations — just function-first gear that failed to hold the audience's interest. The one who completely overturned that stagnating meta was a power-type mare girl who appeared like a comet: the Military Horse.
Originally, the idol performances had been little more than after-show regional promotions. But Sonia was different. The moment she took first place, she stepped onto the stage still in her sweat-damp racing suit. While the other girls went off to change for the performance, she alone claimed center stage with absolute confidence — a debut that was shocking in itself.
"Why didn't I wait, you ask? Well… maybe that's just how a winner feels? If you've got a problem with it… then win next time."
Sonia's first performance, launched with that provocative line, set all of Sky City ablaze. In that instant, Mare Idol Racing transformed from mere spectacle into a full cultural phenomenon.
"That's our Sonia big sister for you…! Big sister… can you hear them? Everyone's… calling your name!"
At her colleague's cry from beside her, Sonia gave a shy little smile.
"I still wonder sometimes whether I really should have taken the name Military Horse…? But I won, so all's well that ends well… right?"
"What nonsense is this, Sonia! It is only by bearing the name of Military Horse that thou hast come this far… still thy training is lacking!"
Believe it or not, the story of the Horse Spirit — who had managed to cross back from the spirit realm into the mortal world on the strength of the fans' fervent cheers for the mare… for the Military Horse… — was just a little extra.