Coaxed into waking up the girls

Vanessa could only whimper, her body a trembling, sweat-slicked mess on the cold lab floor. Every nerve ending still sparked with the ghost of the climax that had just shattered her.

“That delicious formula, Vanessa, her pussy cooed, its tone shifting from sated to commanding. There’s more of it, I’m sure. Let’s waken the girls, shall we?”

Her eyes, blurry with spent pleasure, flew open. "What? No," she breathed, the protest weak even to her own ears. "That’s insane. I can’t…"

“You can, and you will. It would be a shame if I had to edge you until you complied. To emphasize its point, her pussy began to trace slow, maddening circles around her clit with its labia, avoiding any direct contact. The sensation was a special kind of ****, a promise of pleasure perpetually withheld. Vanessa bucked her hips, a raw, needy sound tearing from her throat. The teasing drove her to madness as she snaked her fingers toward her mound. As her digits got close, however, her clit burrowed itself within her folds, shielded from her touch.

“Naughty naughty, I’m in charge down her hun. If you want release, you need to obey me, okay?” Her pussy playfully scolded.

Driven by a need that superseded all rational thought; her trembling hand fumbled for the counter above her. Her fingers closed around a second, intact vial of the test formula. She pulled it down, the glass cool against her feverish skin.

“That’s it,” her pussy encouraged, a wicked delight coloring its tone. “Now, be a good girl and give my sisters a drink.”

With a choked sob of surrender, Vanessa uncorked the vial. Her hands shook violently as she brought it over her chest. For a heartbeat, she hesitated, her mind screaming in warning. Her labia pinched at her clit, nearly making her spill the vial.”

"Fuck! Okay, okay!" she cried out, her willpower crumbling into dust.

She tipped the vial.

The cool, viscous liquid splashed onto her left breast, and she gasped at the shock of it. It soaked into her skin instantly. She poured the remainder over her right breast, the formula dripping in rivulets down her soft curves. For a moment, nothing happened. She panted, waiting, her pussy clenching in **** anticipation.

Then the heat started.

It was the same deep, cellular warmth she’d felt between her legs, but doubled, spreading through the sensitive flesh of her breasts. A low, rhythmic thrumming began deep within them, a vibration that started at her core and worked its way outward. Her breasts began to swell, the skin tightening, her nipples hardening into painfully erect peaks.

“Oh, yes…” her pussy sighed, its voice thick with approval. “That’s it. Feel them wake up.”

Vanessa watched, her eyes wide with a mixture of horror and electric thrill, as her breasts began to move. They undulated independently, rising and falling in a slow, sensual rhythm that was entirely their own. They bobbed, the weight of them shifting in a way that sent jolts of sensation straight to her already overwhelmed core.

“Oh, wow! This feels… great!” A new, high-pitched, melodic voice chirped. It seemed to vibrate directly from her left nipple.

“So much room out here!” Another tiny voice, slightly deeper but just as gleeful, echoed from her right. “And what’s that wonderful, throbbing down below? Can we play?”

Her pussy laughed, a low, rumbling sound that vibrated through Vanessa’s entire body. “All in good time, sisters. First, let’s make our beautiful host feel as good as she’s making us feel.”

Vanessa’s breasts began to move faster, twisting and kneading on their own. Her left breast lifted and then gently slapped against her other breast, the impact sending a shockwave of pleasure through her. The right one rotated in a slow, hypnotic circle, the nipple tracing patterns on her skin.

“Fuck, that’s good, the left nipple-voice moaned. I love the way she shudders when we do that.”

“Mmm, feel how wet she’s getting for us downstairs,” the right one purred.

The praise, coming from her own transformed body, unspooled something deep inside Vanessa. Her pussy’s tongue between her legs finally, finally began thrusting in and out once more as Vanessa screamed, her back arching off the floor.

The tongue picked up the pace and began to piston in and out of her in a ruthless, perfect rhythm. At the same time, her breasts rotated her stiff nipples, each one tracing the air as her breasts undulated, mimicking the perfect massage of strong, manipulating hands.

“You’re going to cum for us,” Vanessa, the three voices spoke in a twisted harmony, vibrating through her cunt, her tits, her very bones. “You’re going to scream so fucking loud for us.”

The pressure built, a tsunami of feeling that she knew would obliterate her. Just as she was about to tip over the edge, the voices whispered one final, unified command.

"Now."