Ava pushed open the apartment door, the weight of a double shift aching in her shoulders. The hallway was dark, silent except for the low, frantic murmur of Japanese dialogue and synthetic music coming from the living room. She dropped her keys in the bowl with a clatter, frowning.

“Gabbie? You still up?”

No answer, just a soft, wet sound and a hitched breath. Ava rounded the corner, her nurse’s bag slipping from her hand.

Gabbie was sprawled on the couch, naked in the flickering blue light of the television. An anime played—colorful, big-eyed characters in some dramatic showdown—but Gabbie wasn’t watching the screen. Her head was thrown back against the cushions, her eyes glazed and distant. One of her hands was buried between her legs, fingers working in a steady, urgent rhythm. The other was roughly kneading her own breast, pinching and pulling at the nipple.

Ava stood frozen, a cocktail of concern and shock washing through her tired brain. “Gabbie? What are you doing?”

Gabbie’s eyes—vibrant, but somehow off, like polished glass—slowly slid toward her. A smile stretched across her face, too wide, too knowing. “Hey, Ava,” she said, her voice a throaty purr that was nothing like her usual bright tone. “Long night? Come here. You look tense.”

“Are you… are you okay?” Ava took a cautious step forward, her scrubs suddenly feeling too tight, the scene too intimate and wrong. “What’s going on with you?”

“Just unwinding.” Gabbie’s hand didn’t stop its motion. She beckoned with her other hand, the one that had been on her breast. “Seriously, come sit. You need to unwind too. Let me help.”

Hesitantly, Ava approached the couch. This was her friend, her roommate. Maybe she’d had too much to drink. Maybe she was stressed. Ava reached out, meaning to touch her shoulder, to check her temperature.

With serpentine speed, Gabbie’s hand shot out and grabbed Ava’s wrist. Her grip was iron-strong. “That’s it,” she cooed, and before Ava could protest, she yanked her down onto the couch beside her.

“Gabbie, stop!” Ava gasped, trying to pull back, but Gabbie was already moving, swinging a leg over Ava’s lap to straddle her. The scent of her, sweat and sex and something faintly metallic, filled Ava’s nose.

“Shhh, just relax,” Gabbie murmured, leaning in. Her mouth sought Ava’s, but Ava turned her face away, the kiss landing hot and sloppy on her cheek. “We’ve been dancing around this forever. Don’t you feel it? The need?”

One of Gabbie’s hands fumbled for the tie of Ava’s scrubs pants. Ava slapped at it, her confusion hardening into fear. “Get off me! You’re not yourself!”

Gabbie paused, her face inches from Ava’s. That strange, glassy look in her eyes sharpened into something like analytical disappointment. She sighed, the sound almost bored. “Guess she’s not ready yet.”

Before Ava could process the words, she felt it. A cool, smooth pressure against her inner thigh, where Gabbie’s body met hers. She looked down.

A tendril of shimmering violet slime, sleek and purposeful, was pouring out from between Gabbie’s legs. It moved with a liquid intelligence, seeking, and before Ava could scream, it found the seam of her own scrubs and slid inside.

The invasion was instant and total. A cold rush that blossomed into a warm, dissolving merger. Ava’s vision swam, her thoughts scattering like leaves in a wind. The last thing she saw was Gabbie’s face going slack, her eyes rolling back as she slumped forward, unconscious.

Then, click.

Jake opened his eyes. He was looking up at the ceiling from the couch, Gabbie’s dead weight heavy on top of him. He was in Ava now. He felt the coarse fabric of the scrubs against his—her—skin, the ache in her feet from standing all day. He grinned.

With a grunt, he shoved Gabbie’s limp body off onto the floor. She landed in a tangle of limbs with a soft thump, out cold.

Jake—in Ava’s body—sat up, adjusting the scrubs top. He glanced at the TV, where the anime was reaching a climactic battle. “Not bad,” he mused, with Ava’s voice. He settled back against the cushions, spreading Ava’s legs comfortably. His hand slid under the waistband of the scrubs pants, his fingers finding the familiar, damp heat.

He sighed, content. The apartment was quiet again, save for the clash of cartoon swords and the soft, wet sounds he made as he touched himself, exploring Ava’s responses while he watched the show. Gabbie would wake up on the floor in a while, confused, with a headache. She’d blame it on sleepwalking or stress. And the game would continue.

The next few days settled into a rhythm, a delicious, secret routine that Jake grew to cherish. He mastered his slime form with a focus born of pure hedonism. Transferring between Ava and Gabbie became as easy as blinking. A thought, a focused push, and he’d slide from one warm, welcoming sheath to the other in a shimmering violet thread.

Ava’s night shifts at the hospital were a gift. The apartment was his playground, and Gabbie’s incredible body was the sole piece of equipment. He’d spend hours in front of her full-length mirror, wearing nothing but her skin, learning every sensitive spot, every curve that made her—made him—gasp. He’d order takeout with her phone, work out in her tightest leggings just to feel the stretch and pull, and lose himself in her own touch until the early hours.

Then, around seven in the morning, the key would turn. Ava, tired but smiling, would shuffle in. “Hey, you’re up early,” she’d say, dropping her bag.

“Couldn’t sleep,” Jake would reply in Gabbie’s voice, already rising from the couch. As Ava headed for the shower, he’d make his move. A gentle hug from behind, a whisper in her ear about how hard her shift must have been, his hands slipping under her scrubs top. Just as she’d begin to melt into the touch, he’d focus. The slime would flow from Gabbie into Ava in a seamless, invisible transfer.

Gabbie’s body would sway, then steady itself, blinking. The real Gabbie, back in control for just a moment, would look around, confused, as ‘Ava’—now Jake—pulled away with a sly smile.

“Gotta get to the gym,” the real Gabbie would mutter, rubbing her temples, already late for her shift. And Jake would have the whole day ahead in Ava’s body, a different but no less delightful toy.

On their rare, shared days off, Jake began his experiments.

It started with stimulation. While nestled inside Ava, he’d will a part of his slime-body to shift, to form delicate, internal filaments that brushed against nerve clusters Gabbie never knew she had. He’d do the same from within Gabbie to Ava. Not enough to trigger a full orgasm, but a constant, low-grade hum of pleasure, a persistent buzz that left them flushed and restless.

He’d then orchestrate the seductions. Inside Ava, he’d corner Gabbie in the kitchen, kissing her with a passion the real Ava had never shown. Gabbie, buzzing from the hidden stimulation and the sudden attention, would respond, her hands tangling in ‘Ava’s’ hair. But then, the old hesitation would surface. “Ava, wait, I’m not sure…”

Switch.

In a heartbeat, Jake would be in Gabbie. He’d grab the back of Ava’s head and pull her into a deeper kiss, picking up the rhythm exactly where he’d left off. “I’m sure,” he’d murmur against Ava’s lips with Gabbie’s mouth. “Don’t you feel it? We need this.”

Ava, her own system singing from his conditioning, would moan her agreement. He’d weave a narrative of mutual, long-suppressed desire, using one woman’s body to convince the other. Soon, they were tumbling onto the couch or into a bed, a tangle of limbs, both utterly convinced it was their own idea.

And during those heated sessions, Jake would dance. He’d make love to Ava while inside Gabbie, reveling in the feel of Ava’s exquisite backside under his—Gabbie’s—hands. Then, just as the tension peaked, he’d transfer. He’d erupt into Ava’s body in time to experience her own climax from the inside, the sensations exponentially greater. A moment later, he might slide back into Gabbie to ride out the aftershocks against her magnificent chest.

Weeks blurred. The girls went to work, laughed with friends, paid their bills. But the moment they returned to the apartment, a switch flipped. They’d look at each other and hunger would take over. Clothes were torn, dinners burned, showers were shared and never finished. They became connoisseurs of each other’s pleasure, none the wiser that a third, directing intelligence was always present, always playing conductor to their symphony of moans.

It was during one such night, a particularly frenzied session on the living room rug, that the routine shattered.

Jake was inside Gabbie, driving into Ava with frantic intensity. The conditioning, the weeks of heightened sensation, it all built to a critical mass. Ava’s back arched, a scream tearing from her throat that was pure, unadulterated ecstasy. The climax that rocked her body was a seismic event.

And it created a feedback loop through the slime connection.

With a wet, audible POP, Jake was violently ejected. A sphere of violet gel, about the size of a grapefruit, shot out of Gabbie and landed on the rug with a soft jiggle, right between the two panting, sweat-slicked women.

For a second, there was only heavy breathing.

Then Ava’s bliss-glazed eyes focused. She looked at the pulsating slime. She looked at Gabbie, who was staring at the same thing in dawning, horrific recognition. Fragmented memories—the hospital room, the invasive cold, the strange blackouts—crashed together with the undeniable, alien evidence before them.

“Oh my God,” Gabbie whispered, scrambling back on her elbows. “What is that? Ava, what is that?!”

“It… it came out of you,” Ava breathed, her face pale. “It came out of me before. At the hospital. I remember… I think it’s been… inside us.”

The horror on their faces was delicious, but inconvenient. Jake, a quivering puddle of indignation, focused. He needed to get back in, to shut this down. But as he willed himself toward Gabbie, a new awareness clicked into place.

He could feel all of himself. Not just the main mass, but every microscopic residue, every lingering trace he’d left behind in their bodies during weeks of transfers and conditioning. They were like distant, tendril-thin limbs. And he could move them.

The girls were piecing it together, their voices rising in panic. “It’s been controlling us! Making us do things!”

No time for finesse. Jake focused his core consciousness on those distant fragments, the ones nestled deep, having brushed against their very brains. He sent a command, not to transfer, but to rewire. A surge of violet energy, invisible and swift, traveled up those neural pathways.

Ava and Gabbie froze mid-sentence. Their expressions of terror smoothed out, went blank, then settled into something new. A serene, placid openness. They looked at the slime puddle, then at each other.

“He’s beautiful,” Ava said softly, a gentle smile touching her lips.

“He makes us feel so good,” Gabbie agreed, her voice warm with affection. She reached out and poked Jake’s gelatinous form with a curious finger. It jiggled, and she giggled.

Jake reformed into a tube and slithered up onto the couch. He observed his handiwork. The fear was gone. The suspicion, erased. Their personalities remained—Ava’s gentle efficiency, Gabbie’s athletic vibrancy—but layered over it was a fundamental, unwavering submission. To him. They understood, now, that he lived within them. And they were glad.

“Who wants me first?” Jake thought, projecting the question through the slime link he now maintained with both.

“I do,” they said in unison, then laughed.

“Ava first,” Gabbie conceded, lying back on the rug, her arms spread in welcome. “You love her ass.”

Jake flowed from the couch in a graceful arc, entering Ava with a sense of homecoming. From within her, he looked through her eyes at Gabbie’s waiting form. The control was absolute, and now, completely consensual.

Later, as they lay in a spent heap, a new thought occurred to Jake, warm and ambitious. The girls had friends. Colleagues. Acquaintances. Smiling, pretty women who came over for wine nights or met for brunch.

He nestled deeper into Ava’s contentment, his mind already weaving new plans. The apartment was a perfect nest. But why stop at two?

He had all the time in the world. And he was just getting started.