[Content Advisory: This chapter includes mature themes and explicit sexual content. 18+ Only.]
There was no going back.
With her whispered "Don't stop now," she had crossed a line she could never uncross.
Not as a doctor, not as a scientist. Not even as a woman afraid of breaking the rules.
Now, she wasn't any of those things.
She was just his.
Vial placed both hands gently on her knees, spreading her thighs further apart. Then, without haste, he pressed the length of his shaft against her lower stomach — letting her feel just how much of him there was.
Shia gasped, her eyes widening at the sensation. Her legs tensed beneath his touch, thighs quivering.
"Y-You're… that big…?" she whispered, breath hitching.
Slowly, Vial drew back, guiding himself lower until the tip of his cock brushed softly against her entrance.
He looked up at her — trembling, breathless, wide-eyed with anticipation. She didn't know what to expect, but her body said yes even when her mind reeled.
He gave her a soft, calming smile. "I'll go slow."
Then, with slow, deliberate control, he began to press inside.
"Ahn~!" Shia moaned sharply, her back arching off the sheets. "Nn… It's… going in…"
Halfway in, her body was already trembling — flooded with sensations she couldn't name. It felt strange, foreign, too much — and yet somehow right. Her fingers clenched the fabric beneath her, her thighs twitching with every inch that entered her.
"Ahh… Vial… It feels so strange… but good…" she murmured, barely aware of her own voice.
Vial let out a sharp, guttural groan. "Damn… you're so tight…"
The heat, the pressure — it pulled a raw, primal sound from his chest as her walls clung to every inch of him.
He kept going — patient, steady — until he was fully inside her.
"Ahhh~!" Shia's mouth fell open in a loud, unrestrained moan. Her legs shook, toes curling involuntarily. "I-It's all in…!"
Vial paused, holding still to let her insides adjust to his cock. He leaned down slightly, brushing his lips near her ear, voice low and gentle. "Are you okay?"
Shia didn't answer — not with words.
Her eyes were glazed, lips parted, her breath coming in rapid gasps. She was drowning in the sensation — her thoughts scattered, her body pulsing with something overwhelming.
"I… I don't know what's happening… but don't stop…" she whispered, her voice trembling. "Please… don't stop…"
Vial smiled faintly, brushing some hair away from her damp forehead. Then he began to move — slow, steady strokes that pulled moans from her lips with every thrust.
"Ah… ngh… V-Vial…" Shia whimpered. "I can feel all of you…"
A low groan escaped him again. "You feel incredible…"
Shia writhed beneath him, her hips trying to match his rhythm even though her body didn't fully understand how. Every movement sent sparks through her core, her voice spilling out unfiltered.
"Ahh… ahhh~! I-It's so deep… I can't think…"
Vial leaned closer, panting softly. "You're amazing, Shia…"
She wrapped her arms around him instinctively, nails digging lightly into his back.
Her body welcomed him. Her heart raced wildly. And in that moment — in the soft sound of their moans, the warmth of their skin, the closeness that blurred every line — she stopped being the doctor, the researcher, the rule-follower.
Suddenly, Shia's body tensed. Her breaths grew shorter, voice panicked.
"Wait—Vial, something's… something's happening—!"
She gripped his arm, confused, alarmed. "I-I think I'm going to pee—stop, wait—!"
But Vial didn't stop. He gave her a reassuring kiss near her ear and murmured, "It's okay… just let it out. Don't hold back."
Shia's back arched violently. Her mouth opened in a silent scream before a loud, drawn-out moan tore through her.
"AHHHHHN~!!"
Her toes curled. Her legs quivered. Her eyes rolled back as the pressure exploded into waves of release. Her pussy tightened hard around his cock, gripping it tightly, pulsing with her orgasm.
"Fuck—" Vial groaned, struggling to keep control. "You're squeezing me so damn tight…"
Shia's body twitched uncontrollably, the sensation too much to comprehend. Her mind blanked out in a haze of pleasure, as if she was floating.
There, in front of him, she looked dazed — her body limp, her face overwhelmed, pleasure marking every line of her expression.
Vial, who hadn't climaxed yet, bit his lip. The sight of her like that — ruined, breathless, still twitching — was too much.
He started moving again.
Shia snapped back as she felt his hips shift.
"W-Wait!! Don't move yet, it's really sensi—AAAHNNGH~♥️!"
Her voice cracked into a choked moan as he thrust into her again — harder, faster, more primal now.
The bed creaked beneath them. Her breasts bounced with each impact, drawing Vial's gaze. He reached out and grabbed one, squeezing it firmly.
"Ahhn~! Vial… nghh~!"
Shia clung to his arm, the other hand fisting the sheets. Her moans turned shameless, constant, her body reacting without thought.
"Ahhh—ahh—ahh~! D-Don't stop—!"
Vial grunted, his pace growing rougher. Her legs wrapped around his hips on instinct, pulling him deeper.
Her head fell back, neck exposed, voice peaking in one long, desperate moan.
"AHHHHHH—!!!"
With one final thrust, Vial groaned deep in his throat and spilled inside her, unable to hold back.
Shia trembled, her moans fading into soft gasps. Her toes curled again, her body limp with exhaustion.
He was going to pull out — planned to finish on her belly — but her legs locked around him tightly, holding him in.
He blinked in surprise, panting heavily. She wasn't letting go.
He wasn't tired. In fact, his body still begged for more.
But when he looked down at her — flushed, dazed, nearly passed out — he made his choice.
Vial slowly pulled out, then collapsed beside her, his breath still ragged.
He turned his face toward her. Shia's eyes were barely open, glassy and distant.
He reached out, cupping her cheek, gently turning her head to face him.
Her body still twitched slightly, as if recovering from a shockwave.
"Shia…" he whispered.
She blinked, dazed, then slowly reached out to him.
Their arms wrapped around each other. A quiet, exhausted embrace.
She didn't say anything.
She didn't need to.
In that moment, there was nothing left to say.
Only warmth.
Only closeness.
Only them.