After witnessing the intense, raw passion between Vial and Shia, Celeste turned away from the door, her heart thudding violently in her chest. She had forgotten all about her phone. The image of Shia's face twisted in ecstasy—Vial's body moving with purpose—was burned into her mind.
She walked briskly, almost stumbling into a nearby restroom. The door clicked shut behind her. She made her way to the sink, gripping its edges as she stared at her reflection in the mirror.
Her face was flushed. Her breathing uneven. Her eyes wide.
"Why… why did I watch?" she whispered, searching her own gaze for an answer. But there wasn't one. Only emotion. Jealousy… curiosity… longing. Her eyes drifted downward, to her stomach. Her lower abdomen felt tight—buzzing with something unfamiliar, something needy.
She bit her lip.
Before she could reason her way out of it, she turned and entered one of the stalls, locking the door behind her. Her hands trembled slightly as she sat down on the toilet seat. She hiked up her fitted mini skirt, then slowly pulled her underwear down to her knees.
It was soaked.
The sight made her thighs clench.
Driven by desire she didn't fully understand, she let her fingers gently trail down to her aching folds. A soft gasp escaped her lips. She covered her mouth with her other hand, shocked by how sensitive she felt.
"I should stop…" she thought, but her fingers betrayed her.
She rubbed in slow, cautious circles at first, her breath shallow. But the image of Vial flashed in her mind again—his lips on Shia's neck, his cock buried deep in her. Celeste let out a stifled moan. Her touch became faster, needier.
Still not enough.
She slipped a finger inside herself, the warmth and tightness making her shudder. It felt strange—but not bad. Her hips bucked instinctively as she began to thrust gently. A second finger followed soon after, stretching her slightly. Her legs trembled.
She couldn't stay silent anymore.
"Mmmh… ahh…" she whimpered into her palm, biting down to muffle the sounds.
Her movements grew frantic, wild. Her breath came in ragged gasps. The pressure built rapidly inside her, waves of heat spreading through her limbs. Her fingers curled, hitting just the right spot.
And then it hit.
Her back arched as she came with a loud, unfiltered moan, her body spasming in pleasure. For a moment, everything else disappeared—her jealousy, her guilt, her confusion. Only the pleasure remained.
Until a knock on the stall door shattered it.
"Um, excuse me? Are you alright?" came a concerned woman's voice from outside. "You were… making some weird sounds, so I thought I'd check."
Celeste's heart nearly exploded from panic.
"Y-Yes! I'm okay!" she called out, trying to sound composed.
She scrambled to clean herself, pulling her underwear back up and adjusting her skirt. Her hands were still shaking as she unlocked the door and stepped out, avoiding eye contact with the woman.
Without a word, she hurried out of the restroom.
The cool night air greeted her as she exited the building, but it didn't ease the burning in her cheeks. She wandered to a nearby bench and sat down, her thoughts racing. She stared up at the starry sky, its quiet beauty doing little to calm the storm inside her.
"What… what's happening to me?" she whispered.
Her legs curled together subconsciously. The memory of her own moans still echoed in her mind, as did the look on Vial's face when Shia was on top of him.
"I want to do it too…" she whispered to the night.
Here's a revised and expanded version of your draft, bringing the total word count of the full scene (including Celeste's masturbation scene) to around 1000+ words. This version includes added internal thoughts, minor descriptions, and smoother transitions to enhance flow and realism:
Back in the room, Vial stood up, his breath still unsteady as he began to put his clothes back on. Shia lay sprawled on the bed, her body twitching from the aftershocks of pleasure. Her chest rose and fell rapidly, her skin glistening slightly with sweat.
She tried to sit up—but immediately winced. Her legs trembled beneath the sheets.
"Vial…" she muttered softly, her voice husky. "I… I can't walk properly…"
Vial turned to her with a concerned expression and walked over. Just before offering a hand, he leaned down and hugged her gently, burying his face into her neck.
She let out a soft chuckle, then pinched both of his sides.
"Ah—ow! What was that for?" he winced, pulling away.
"This is your fault," she muttered, narrowing her eyes. "I told you to take it slow, but you kept pounding like a madman."
Vial scratched his cheek sheepishly. "Sorry, sorry… I couldn't help it. You were just too irresistible."
Shia rolled her eyes, but a faint smile tugged at her lips. "You're lucky I like you."
She took a deep breath and tried again to get up, but her legs were still weak and unsteady. She leaned against the wall, her knees threatening to give way.
"I need to check the lab… see if there's another room Celeste can use," she muttered, trying to stay upright. "She was in your assigned room when you were in the emergency ward. We can't all sleep in one room…"
But with each step, her balance faltered. She pressed her hand against the wall, biting her lip as her legs shook.
Vial frowned, walking toward her.
"You're going to hurt yourself like that."
"I'm fine—"
Before she could protest further, Vial scooped her into his arms like a princess. Shia gasped slightly, her arms instinctively wrapping around his neck.
"You really didn't have to…" she whispered.
Vial didn't respond. He just smiled.
She rested her head against his chest.
There was no embarrassment. Just warmth.
Inside the lab, Vial gently lowered Shia onto a reclining couch.
"You're so needy," he teased, raising an eyebrow.
Shia narrowed her eyes and glared. "And whose fault is it that I'm like this?"
Vial smirked. "Fair."
She sighed, exhausted, her voice softer this time. "Tell Celeste that room 2A is available. It's just down the hall. She can sleep there tonight."
"Got it," Vial said, turning to leave.
"Wait." Shia grabbed his wrist and pulled him down gently. She kissed him on the lips, slow and lingering. "Goodnight."
"Goodnight," he replied, smiling as he stood back up.
Out in the hallway, Vial spotted Celeste walking slowly toward him. Her face was slightly flushed, and her steps were uneven—though not physically impaired. Something else was off.
"There you are," he said casually. "Shia asked me to tell you—room 2A is yours tonight. It's open."
Celeste nodded quickly. "Thanks. I, um… just need to grab my phone. I left it in your room."
"Sure," Vial replied, motioning with his thumb toward the hallway.
But as Celeste passed by him, he noticed something odd. She didn't make eye contact. Her head stayed slightly bowed, her face partially hidden beneath her hair.
She entered his room, grabbed her phone, and exited in under ten seconds.
"Got it," she muttered quickly, brushing past him.
"You alright?" he asked, raising an eyebrow.
"I'm fine," she said with a strained voice, then rushed off down the hallway toward her assigned room.
Vial stood there for a second, watching her disappear.
Weird, he thought. Maybe she's just tired.
He didn't think much more of it.
He returned to the room and collapsed into the soft bedding. It didn't take long before exhaustion wrapped around him and dragged him into sleep.