Lucas's words were not false. The System had indeed temporarily deprived him of the ability to impregnate women, but the System store also contained items that could lift this restriction. He not only had no objections to this arrangement but actually welcomed it.
Lucas knew he was not yet firmly established, so temporarily losing his fertility was actually quite convenient.
As for Lucas's words, Sarah was half convinced and half doubtful. Sensing the hesitation in the beautiful girl in his arms, Lucas gently reassured her, "Cousin Sister, don't worry. Given our current situation, having a child really isn't suitable."
Sarah silently pondered for a while. She knew the boy in front of her, who was even a few months younger than her, was very mischievous but not at all stupid. She found his reasonable explanation about 80% believable.
With her doubts temporarily dispelled, Sarah suddenly remembered that Lucas's command had not yet been completed.
She leaned back slightly, resting her slender waist on Lucas's other thigh, leaving her buttocks suspended in the air.
Her hands slipped under her skirt and slowly pulled down her black lace panties. Then she turned around to face Lucas, spreading her legs and lifting her skirt.
One hand held onto Lucas's shoulder for support while the other reached down to guide his hard cock to her pussy entrance, slowly lowering herself onto it.
Once she had adjusted to the thickness and hardness of his cock, Sarah wrapped her arms around Lucas's neck for support. Her hips rose and fell slowly, moving at a leisurely pace as they joined together.
This motion was not as intense as Lucas's previous frenzied thrusting, but since Sarah controlled the rhythm of the penetration, the pleasure felt more real, more active, and increasingly irresistible to her.
Unable to help herself, she tilted her head back, her stunning face filled with desire.
Unsuppressed moans escaped her lips and nose as her long, black hair cascaded behind her, swaying with the rise and fall of her body, creating an extremely erotic sight.
Even as he watched Sarah's debauched appearance, Lucas remained unsatisfied. He pulled down the straps of her dress, letting the little black dress fall to her waist.
Then he unfastened her white bra, leaving her upper body completely exposed, revealing her firm, elastic breasts and already erect nipples.
Lucas lowered his head and took Sarah's left breast into his mouth, sucking on the soft flesh while flicking her nipple with his tongue.
At the same time, his right hand shamelessly grabbed her right breast, pressing, kneading, and twisting it into all sorts of lewd shapes.
With stimulation coming from three places at once, Sarah's pleasure became overwhelming again. She instinctively quickened the pace of her hips, tightening her arms around Lucas's neck.
Her previously restrained moans, which had been mere single notes, now formed coherent words, "Ah... Master... don't lick... don't... slower... Master... Master... ah!"
Suddenly, Sarah clutched Lucas's head tightly, sinking all the way down onto his cock as her pussy clenched around him.
A flood of her juices gushed out, drenching the head of his cock in warmth and sending waves of pleasure through him.
After her climax, Sarah went completely limp, collapsing onto Lucas's shoulder as she struggled to catch her breath.
Her ragged breathing against his neck only fueled his desire. He cupped her buttocks with both hands and began thrusting upward from below, driving his cock deep into her pussy again and again.
"Ah... no... I can't take it anymore... this little bitch... is going to die... Master... slower..." This position made it harder for Lucas to thrust vigorously, so his movements were gentler than before, but the pleasure was no less intense.
Sarah clung to Lucas's neck to steady herself while crying out "Master" in a seductive voice. Within just a few minutes, she climaxed twice more.
With one final, powerful thrust from Lucas, Sarah threw her head back, her body shuddering violently as she reached her peak alongside him.
Having experienced four orgasms in a single session, Sarah was completely drained. Her arms slipped from Lucas's neck, and he pulled her into his embrace, pressing her cheek against his chest so she could feel his scorching skin and pounding heartbeat with no distance between them.
After resting for a long while, Sarah finally regained some strength. She got up to clean Lucas, then returned to her own room with a look of both satisfaction and exhaustion.
In the days that followed, Sarah would quietly visit Lucas's room every morning to wake him up with a good morning blowjob.
Of course, a simple blowjob was never enough to satisfy Lucas's lust, so these morning sessions naturally extended into much longer affairs.
Lucas took full advantage of Sarah's body, making her assume all sorts of positions for his pleasure. And Sarah, increasingly addicted to this simple yet powerful joy, began to cooperate not just out of obedience, at least when they were in bed.
"Master is so good... Master is amazing... fuck this little bitch to death... ah... Master's cock... it's all inside..."
"Naughty sister, I'm going to cum!"
"Ah... cum inside... fill me up... give it to your sister... give it to your little bitch... this little bitch... wants... wants Master's cum inside..."
One day, their morning blowjob escalated again. With a low growl, Lucas gripped Sarah's hips as she knelt on the bed and thrust deep into her from behind, releasing his load into his biological sister's pussy.
The ice cold beauty quickly recovered from her climax, turning around to obediently clean his cock, now coated with her own juices. Just as Lucas was considering going for another round, hurried footsteps approached from outside the room, followed by a clear, melodious voice.
"Sarah, why aren't you up yet?"
At the sound of that voice, before Lucas could react, Sarah trembled in fright, her teeth nearly grazing his cock. She lifted her head, panic written all over her face. "Celes... Celes is here..."
"Celes Wester?" Lucas wasn't too surprised. "She's here to hang out with you?"
"Probably," Sarah said. "She didn't tell me beforehand. This is a surprise visit."
"Get dressed first," Lucas said.
The two hurriedly put on their clothes and opened the door together, just in time to see a tall girl standing with her back to them in front of Sarah's bedroom door, about to knock on the unresponsive door. Hearing the noise behind her, the girl turned around curiously.
"Sarah, did you change rooms?" Celes noticed Sarah first, then spotted Lucas standing beside her. "And this is..."