A new invitation

The beep of the burner phone cut like a knife through the tension of the training grounds. Magi was struggling with a crawl exercise under a camouflage net, the gravel digging into her palms. The sound, sharp and ill-timed, made her miss her rhythm. A mocking laugh escaped from somewhere nearby.

"Cadet Rojas!" Sub-officer Costa's voice thundered from the edge of the pit. "Can you not disconnect for even five minutes?"

"Apologies, Sub-officer," Magi gasped, sitting up and pulling out the phone, her face flushed from exertion and embarrassment. Upon seeing the name—Adrián S.—the blush turned to pallor.

The message was concise: Valeria insists. Tomorrow, spa day at 'Oasis'. We pick you up at 10. Relax, forget tensions.

Magi read the screen, feeling how the gravel under her nails was becoming the least of her worries. Forget tensions. The irony was so brutal she almost let out a bitter laugh.

"Something to share with the class, Rojas?" Costa was now at her side, her immaculate boots inches from the damp earth where Magi was crawling.

"It's... him, Sub-officer," Magi murmured, showing the phone. "Soler. He's inviting me to a spa. Tomorrow."

Costa's face showed no surprise, only a quick flash of calculating interest. She took the phone from Magi's hands, read the message, and sketched a cold smile.

"'Oasis'. A... revealing place," she commented, handing back the device. "And with the sister as chaperone. Interesting. A more domestic dynamic, less pressure. Perfect for lowering defenses."

"Sub-officer, I... isn't it risky?" Magi tried to protest, searching Costa's impassive face for a glimmer of prudence.

"Everything is a controlled risk, cadet," Costa interrupted her. "But a necessary risk. Trust is built in these environments. Accept. Right now."

"And... clothes?" was the only thing she could think to say, a final, weak attempt. "I don't have a swimsuit..."

"That is taken care of," Costa nodded toward the main building. "My office. Now. Training can wait."

Leaving the other cadets exchanging looks of curiosity and mockery, Magi followed Costa through the silent hallways. Every step felt like an advance toward another trap.

Inside the office, Costa opened a low drawer in her desk and took out a small, flat black paper bag, logo-free. She tossed it onto the table.

"Your equipment," she said in a neutral tone, as if speaking of a bulletproof vest.

Magi, her heart shrinking, opened the bag. Inside, folded with a precision that felt obscene, was a bikini. Black. Not the vibrant, vulgar red she had imagined, but an intense, matte black. But its design was, if anything, even more bold.

It was of a minimalist and brutally effective cut: the top consisted of two tiny triangles joined by a thin cord that would tie at the neck and back, leaving the sides of her torso completely exposed. The bottom was a thong with ultra-thin straps, a simple triangle of fabric held by threads that met at the hips.

"It's... very small," Magi managed to articulate, her voice cracking.

"It is discreet," Costa corrected, without a shred of irony. "Black is discreet. It blends with the luxury environment. And its design... favors mobility." Her eyes swept over Magi's body. "We want you to feel comfortable, don't we? For you to be able to... relax."

Magi squeezed the paper bag. The fabric of the bikini, soft and cold to the touch, burned her fingers. She understood Costa's message. It wasn't about going unnoticed, but about being a high-class spectacle, elegant and expensive bait. The black wasn't for hiding; it was to enhance, to create an obscene contrast with her skin, to remind Adrián, and herself, of the price of her "relaxation."

"You will wear it under your civilian clothes," Costa continued. "At the spa, act naturally. Take advantage of the sister's presence. Get close. People talk more when they believe there is trust."

"Yes, Sub-officer," Magi whispered, lowering her gaze.

"You are dismissed. And cadet..." Costa paused. "Seize the day. Rest. Tomorrow you have work to do."

Magi left the office, the black bag pressed against her dirty sweatshirt. The bikini, a stain of promised darkness in neutral paper, was the reminder that her body would never stop being a uniform. Tomorrow, in the thermal waters of 'Oasis', there would be no rest. Only another mission, another layer of humiliation, this time wrapped in black silk and the fake smile of a sister who perhaps, just perhaps, was as innocent as she seemed. The invitation to the spa wasn't a break. It was the front line of a new battle.