Here is the translation of the provided text from Korean to English:
"Is it your first time?"
Surprised by her unexpected words, Salreos hesitated for a moment, then his arm around her waist slowly loosened. Shivering, Lillian wrapped her arms around herself and thought.
'Would he perhaps go easy on me?'
Not a chance. The devil, now smiling more intensely than before, flashed his red eyes and murmured.
"That's quite tempting. A perfect offering for a first contract."
Silently touching her forehead, Lillian recalled a line from 'Princess Aleina'. Devils delight in blood, slaughter, and beautiful virgins. Why hadn't she remembered that line sooner?
With beast-like claws, the devil grasped Lillian's hair and fiercely pressed his lips to hers. Pulling her close, Salreos muttered.
"But since it's your first time, I suppose I need to accommodate the human fantasy. After all, I can't parade around in the human realm looking like this."
As he finished speaking, a chilling sound emanated from his body. It was as if all his bones were breaking and realigning. Indeed, his dark-red skin stretched and contracted violently, his body convulsing intensely.
Startled, Lillian quickly stepped back to distance herself from him. Her terrified eyes widened.
'After all the trouble of forming a contract, why is this happening now? He isn’t going to explode, is he?'
This bizarre phenomenon was new to her, and she genuinely wanted to cry.
Fortunately, Salreos did not explode. As his bones broke and reassembled repeatedly, his dark-red skin gradually turned pale. Not only that, but his enormous stature shrunk, and he now resembled a tall adult man. The horns on his head vanished, replaced by flowing red hair. Lastly, as his nails retracted, he completely transformed into a human form.
"How do I look?"
After the dramatic transformation, Salreos smoothed back his disheveled hair and turned to look at her with a deep smile. His sharp eyes shone with a striking golden hue. He was breathtakingly seductive and erotically handsome.
Reaching out, he pulled Lillian close and whispered in her ear. Suppressing her trembling body with his fangs gently biting her earlobe, Salreos murmured in a gravely voice.
"With a male like this, you'd spread your legs, wouldn’t you?"
"……!!"
Certainly, the human-transformed Salreos was the most beautiful man Lillian had ever seen. Especially his tall figure and robust chest muscles made her heart race. Though she hated to admit it, just looking at him was enough to arouse her.
The devil, embracing her back and bending her over, thrust his tongue deep into her ear. His tongue, like poison, probed her sensitive insides. The wet sounds filled her mind, causing her body to shudder involuntarily. Whether this was the devil's charm or something else, her body was undeniably heating up.
"Ah, uhm..."
"You’re starting to emit a lewd scent. Quite sweet."
His nose grazed her nape, and his hot tongue licked up her pale skin. Grabbing Lillian's chin, Salreos bit into her lips fiercely.
Whatever magic this was, his saliva tasted like chocolate laced with whiskey. Sweet yet bitter, and intoxicating enough to make one drunk. His hot tongue teased the roof of her mouth, sucking and twirling around her tongue. Simultaneously, his large, delicate fingers effortlessly stripped her clothes. Her barely clothed breasts soon fell into his grasp.
"Ah, no..."
His fingers precisely pinched her nipples through the thin fabric, twisting and skillfully rubbing them. The tingling sensation between her legs made Lillian gasp and twist her body. As she gasped, Salreos’s tongue dove deeper, swallowing even the sound of her breaths.
"You have a very responsive body. Cute."
The voice in her ear was so obscenely smooth that it sent a thrill through her body. Lillian shook her head and turned away. At that moment, her body stiffened. In her line of sight, she briefly forgot about Herbert's corpse.
"What’s wrong?"
Salreos lifted his lips from her neck and turned his head, spotting the corpse remaining inside the magic circle and letting out an 'Ah.' His face clearly showed he had completely forgotten about it.
"It's a bit problematic to be next to a corpse for your first time."
Annoyed, Salreos's golden eyes glowed red. Suddenly, a fierce flame engulfed the inside of the magic circle, filling the view with intense heat.
Blinded by the light, Lillian instinctively shut her eyes. As she lifted her tear-brimmed eyelids, she was stunned. The surroundings had changed. In a space filled with dim red lights, gold and jewels sparkled like stars. And Lillian found herself lying on a bed draped with golden curtains, covered with a vivid red blanket.
"What is this..."
Experiencing magic for the first time, Lillian looked down at herself. Realizing the blanket felt strange against her skin, she discovered she was naked. Salreos chuckled as he saw her widened eyes in shock.
"It’s too early to be surprised."
He calmly climbed onto the bed and pushed her down, pinning her beneath his sturdy body. Lillian felt like prey under the weight of the demon. In Salreos’s eyes, she must have seemed like mere sustenance.
"Relax, don’t tense up."
Salreos's golden eyes narrowed as if smiling. Those beautiful eyes, though enchanting at a glance, harbored a predatory sharpness. As he gazed down at Lillian, licking his lips, he spread her legs.
"You’re wet."
His words pierced her ears, and Lillian’s face flushed hotly. She had never been intimate with anyone before, and the exposure was overwhelmingly embarrassing. But before she could close her legs, Salreos bent over.
Boldly sticking out his tongue, he licked her reddened vulva, poking her clitoris with the tip. His tongue was devilishly hot and unusually thick, causing her body to jolt with each jab. Though she knew he was still a demon beneath the human guise, her mind went blank with pleasure.
"Ah, ah, uh... mmm."
"The taste is like fruit. Very sweet."
His hot tongue roamed between her spread legs, rolling over the swollen clitoris. Each time, her head throbbed and her legs shook. She felt sticky honey flowing from inside her. Salreos chuckled in satisfaction, pressing down on her thighs and thrusting his tongue deeper inside her.
"Ah, no! If you go in..."
He ignored her and continued to lick the sensitive folds inside her. His tongue ventured deeper, sucking fervently. The wet, lewd sounds filled her ears, her mind consumed by the sticky noise.
Under his relentless caress, Lillian cried and gasped, tears streaming down. The soft yet firm tongue thoroughly probed and licked her inner walls. It was an overwhelmingly pleasurable sensation, almost unbelievable.
"Ah, ah, ah...!!"
With intense stimulation, Lillian eventually reached her climax. Hot fluid flowed down as her vision went white. She felt as though she was floating, her sensitive body trembling uncontrollably on the red sheets.
But Salreos didn’t remove his tongue from her vulva. Instead, as if the previous actions were merely playful, he licked her insides more aggressively. He licked up all the honey oozing from her folds, as if tasting her climax with his mouth.
"No, I hate this! I'm still going, ah! It's too much...!!"
Pleasure made her head feel strange. Lillian writhed and cried, begging, but she couldn’t escape the grip of the demon. His long, hot tongue delved into her convulsing insides, teasing her throbbing clitoris. The overwhelming sensations injected a cruel pleasure.
Eventually, after reaching her peak multiple times, Lillian nearly lost consciousness. She could hardly speak, her limbs limp as she gasped. Salreos observed her lewd state with satisfaction, murmuring contentedly.
"Your body is nicely heated up."
He bent over, supporting her back and lifting her upper body. Then he leaned in and kissed behind her ear.