Peter kept teasing her dripping entrance with the thick head of his cock, rubbing it up and down her slick folds until Cortana was trembling with anticipation.
Then, with one smooth, powerful motion, he pushed inside her.
Cortana's mouth fell open in a silent cry as he stretched her tight, virgin-tight walls. He sank in slowly, inch by inch, until his hips pressed firmly against her reddened ass and the head of his cock nudged against her cervix.
"Fuuuuck… Daddy…" she moaned breathlessly, her voice shaking. "You're so deep… so thick…"
Peter groaned at the incredible heat and tightness surrounding him. He stayed buried to the hilt for a long moment, letting her feel every inch, before he started moving.
His thrusts began slow and deep — long, sensual strokes that dragged along every sensitive spot inside her. The wet sound of her pussy taking him echoed softly with each thrust.
Cortana's eyes fluttered, soft moans spilling from her lips. "Yes… just like that, Daddy… You feel so good…"
He kept that steady, controlled rhythm, fucking her with deep rolls of his hips, one hand still gripping her waist while the other occasionally delivered firm spanks to her ass.
But the moment she started calling him Daddy again, something shifted.
"Daddy… please…" she whimpered, pushing back to meet his thrusts. "Fuck me harder… Your little girl needs more…"
Peter's grip tightened.
He started thrusting faster.
Thump… thump… thump…
Cortana moaned louder as if to know that her role making him wild. "Yes, Daddy! Like that....fuck this little cunt!"
The pace quickened.
Thump-thump-thump-thump...
Peter began pounding into her, hips snapping forward harder with every stroke. The sound of skin slapping skin grew louder, wetter, filthier.
"Oh my god.....Yes! Yes, Daddy! Fuck me harder!" Cortana cried out, her voice turning desperate and broken. "Don't stop! Fuck your little girl— fuck me! Fuck! Fuck! Yes, Daddy, yes!"
The more she moaned "Daddy", the more it drove him wild.
THUMP-THUMP-THUMP-THUMP-THUMP...
The table shook under the force of his thrusts as he slammed into her again and again, burying himself completely with every stroke.
"Fuck yes, Daddy!" Cortana screamed in pleasure, her blue body jolting forward with every powerful thrust. "Harder! Harder! Destroy my pussy, Daddy.....Yes! Yes! Yes! Fuck! Fuck me like that! Don't stop!"
Peter growled, one hand fisting her blue hair as he railed her mercilessly from behind. The wet, obscene squelching sounds of his cock pounding her soaked cunt mixed with her constant filthy moans.
"Daddy....Daddy...I'm yours! Fuck me! Fuck your baby girl harder! Yes! Yes! YES, DADDY!"
Peter was slamming into her with everything he had, the wet thump-thump-thump of his hips crashing against her ass echoing through the lab like a drumbeat.
Cortana's voice was hoarse from moaning, but she still managed to gasp out between thrusts:
"I'll be the best— Ah! Mm!— girl that ever! Ah! existed! Yes—! Yes, Daddy!"
Peter growled, pounding her even harder, his cock driving deep into her clenching pussy with every brutal stroke.
"Perfect," he rasped, voice strained with pleasure. "And as a reward, I'll give you something you've been waiting for a long time."
Cortana's eyes rolled back, her walls fluttering wildly around him.
"YES! PLEASE FILL ME UP! FILL ME UP! FILL ME UP! I CAN'T WAIT ANY LONGER, DADDY!"
The table was creaking dangerously under the force of his thrusts, but neither of them cared. Peter fucked her mercilessly, chasing his release while Cortana pushed back to meet every savage thrust.
THUMP—THUMP—THUMP—THUMP—
Suddenly, with a loud CRACK, one of the table legs snapped. The table tilted violently, but Peter didn't stop. He kept fucking her through it, holding her body tight as the furniture collapsed beneath them.
The overwhelming sensation pushed them both over the edge at the exact same time.
Cortana screamed, her entire body seizing up as a devastating orgasm ripped through her. Her pussy clamped down on his cock like a vice, pulsing and milking him desperately.
Peter buried himself to the hilt with a deep, guttural groan and exploded. Thick, hot ropes of cum flooded deep inside her semi-organic womb, pulse after pulse, filling her completely. He kept thrusting through his orgasm, pushing his seed even deeper, refusing to stop until every last drop was drained inside her.
Only when he finally finished did he slow down, breathing hard.
Cortana's legs gave out completely. The moment he stepped back, she collapsed onto the floor in a trembling, blissed-out heap. Thick white cum immediately began leaking from her well-fucked pussy, dripping down her blue thighs onto the lab floor.
Peter sat back in the chair, chest heaving, and smiled at the beautiful sight.
"That was a great Christmas present," he said, voice rough, "and a good way to test out your new body, don't you think?"
Cortana, still panting, slowly turned her head toward him. A wicked, satisfied smile spread across her lips. She reached between her legs, scooped up some of the leaking cum with her fingers, and brought it to her mouth, moaning sensually as she tasted it.
Then, with shaky limbs, she began crawling toward him on all fours, eyes locked on his still-hard cock.
Peter watched, mesmerized, as she reached him, took his slick cock in both hands, and started licking it like a lollipop — long, slow, enthusiastic strokes of her tongue cleaning every trace of their combined fluids.
"It was better than I imagined," she purred between licks, looking up at him with those bright blue eyes full of lust and affection. "Thank you for the Christmas present, darling. You've proven that the wait was worth every damn second."
She gave the head of his cock a wet kiss before continuing, "And I don't expect to have this bad boy inside me again… but this time in another place~"
Peter's cock twitched hard in her hands at the implication.
"Wow," she giggled, eyes sparkling. "I think I have to take care of that."
Peter leaned back in the chair, smirking.
"Bon appétit~"
Cortana smiled seductively, licking her lips.
She opened her mouth and took him in again, this time with clear intent.
First she ran her tongue slowly along the underside of his shaft, savoring the mixed taste of their juices.
She started gentle and teasing long, lazy licks from base to tip, swirling her tongue around the sensitive head before kissing it softly.
"Mmm…" she hummed in delight. "So good…"
Peter sighed and leaned back further in the chair, one hand gently resting on her blue hair as she worshipped his cock.
She took her time, licking every inch clean, occasionally sucking just the head into her warm mouth with wet, obscene sounds.
But the longer she sucked, the hungrier she became.
Her pace gradually quickened.
She started bobbing her head faster, taking more of him into her mouth with each pass. Wet slurping noises filled the lab as she sucked harder, her cheeks hollowing.
"Fuck… that's good, baby," Peter groaned, his fingers tightening slightly in her hair.
Cortana moaned around his cock at the praise, the vibration sending pleasure shooting up his spine.
She pushed herself further, trying to take him deeper.
When the head of his cock hit the back of her throat, she gagged softly but didn't pull away.
Instead, her eyes watered slightly as she held him there for a moment before pulling back with a gasp, strings of saliva connecting her lips to his glistening shaft.
She looked up at him desperately.
"I want all of it, Daddy…" she breathed, voice hoarse. "I want to take every inch."
Before he could respond, she dove back down. This time she forced herself deeper, gagging louder as his cock pushed into her tight throat.
Her throat convulsed around him, but she kept going, determined and hungry. Tears pricked the corners of her eyes, yet she refused to stop.
Peter groaned deeply and gripped her hair tighter, guiding her movements.
"That's it… take it deeper for Daddy."
Cortana whimpered around his thick cock and pushed even further. She gagged hard ...a wet, choking sound ....but her desperation only grew.
She wanted him whole. She needed to feel him all the way down her throat.
She bobbed faster, forcing more and more of his length past her gag reflex with every thrust of her head.
Saliva dripped messily down her chin and onto her blue breasts as she choked herself on him, eyes looking up at him with pure lust and determination.
"Glk...! Glk..! Glk...!" The wet gagging sounds grew louder and more frequent as she tried desperately to swallow him completely.
Peter's grip on her hair tightened, becoming firmer and more possessive as he watched her struggle so eagerly for him.
"You're doing so well, baby girl," he praised, his voice rough and thick with pleasure. "Keep going. Take Daddy all the way."
With those words, he took control.
Peter held her head steady with both hands and began thrusting into her mouth. Each thrust pushed deeper than the last. Cortana gagged hard but moaned encouragingly, her hands gripping his thighs as she surrendered to him.
Glk— Glk— Glk— Glk—
He fucked her face with long, steady strokes, going deeper every time. Her throat bulged visibly as she took more and more of him. Saliva poured messily from her stretched lips, dripping down her chin and onto her heaving breasts.
"That's my good girl," Peter groaned, eyes dark with lust. "Taking Daddy so deep… You look so fucking perfect like this."
Cortana's desperate, watery eyes stayed locked on his, full of lust and devotion as she let him use her throat. Her gagging became constant and wetter with every deeper thrust.
Peter's breathing grew ragged. He felt his orgasm building fast.
"I'm close, baby… Daddy's going to cum down your throat."
He started thrusting faster, pushing all the way into her tight throat with each stroke. Cortana choked and gagged loudly but held on, determined to take everything he gave her.
With a deep, guttural groan, Peter buried himself to the hilt one final time and started cumming.
Thick, heavy ropes of cum erupted straight down her throat. He kept thrusting slowly through his long, powerful orgasm, pumping load after load deep inside her. Cortana's throat worked around him, swallowing greedily even as she gagged and sputtered, tears flowing freely.
Peter held her head down firmly as he emptied himself completely.... long, pulsing spurts that seemed to never end. Only after the final weak twitch did he slowly pull out of her abused throat.
Cortana gasped for air, coughing and drooling thick strings of saliva and cum. Her lips were swollen, her chin and chest a complete mess, but the look on her face was one of pure satisfaction and love.
She licked her lips slowly, still breathing hard, and smiled up at him with glassy eyes.
Peter gently pulled her up into his lap and held her close, letting her rest against his chest. Cortana buried her face in the crook of his neck, still breathing softly as she came down from everything.
"You were perfect," he whispered, kissing the top of her blue head before stroking her hair tenderly. "My beautiful girl."
Cortana smiled against his skin, wrapping her arms around him tighter.
"I love you, Peter… Thank you for giving me this body. For giving me everything."
They stayed like that for a while... naked, warm, and tangled in each other's arms....exchanging soft kisses and sweet murmurs until their breathing finally slowed drifting to sleep.