Nancy's eyes were filled with the shimmering waters of desire. She stroked him subconsciously while scolding coquettishly, "You're so annoying. You promised me, your elder sister, that you would never force me."

"My dear elder sister, I have been unbearably frustrated this whole month."

"And besides, I haven't gone to find Chloe anymore. You should at least give me some reward."

As Luis spoke, he eagerly pressed himself against his sister-in-law's chest. He watched the two full, round breasts sway, their small pink nipples looking utterly delicate and enticing.

He couldn't wait to use both hands, grabbing and kneading them. His mouth opened to suck on a small nipple, licking and prodding with his tongue, indulging fully in the beautiful temptation of these treasures.

"Ah…"

Stimulated simultaneously by her brother-in-law's hands and mouth on her sensitive spots, the physical contact made her aware of how scorching his body temperature was. That hazy, intoxicating aura made Nancy moan uncontrollably.

Her body turned utterly pliant from this treatment. A soft, languid pleasure spread alongside her brother-in-law's teasing, feeling intensely comfortable.

She couldn't help but quicken her stroking rhythm. Her other hand caressed her brother-in-law's face. Trembling with passion and excitement, she whispered, "Brother-in-law… your elder sister actually likes you very much, truly."

"But when I think of you being Lily's husband… If only you weren't."

"Lily loves you so deeply. She's so happy now. If she were to find out, I would rather die…"

"If you were someone else, your elder sister would have an affair without hesitation… I'd even be willing to be your mistress, just like Chloe."

"Why… why did you have to be my brother-in-law…"

The mist in Nancy's eyes grew heavier. Having drunk quite a lot tonight, she was using this chance to speak her heart. Amidst her agitation was a sorrow she couldn't suppress.

Her nearly tearful eyes made her seem pitiful and delicate, but in Luis's view, this only made her more alluring. Defiling the inherent traditional conservatism and modesty of a married woman was a tremendous thrill for any man.

Especially when this married woman was a stunning beauty, his own sister-in-law, his wife's own elder sister—the temptation was multiplied exponentially.

"Elder Sister, it doesn't matter. Don't worry about all that."

Luis gripped her full, beautiful breasts, licking her nipples with great relish, while muttering without looking up:

"Actually, you're cheating with your own brother-in-law, and I'm cheating with my own elder sister-in-law. Isn't that more exciting…?"

"It's better to steal than to be given… and it also depends who it is. This way is actually more tempting."

Upon hearing this, Nancy was first stunned, then her face flushed bright red with shame. In truth, she felt the same way, but out of feminine reserve, she was too embarrassed to say it.

But what she had just said was indeed her true feelings.

If Luis weren't her brother-in-law, whom she saw constantly, if she didn't have to worry daily about being caught in the act, about an accidental discovery that would leave her on edge…

If it were any other man who treated her so well and spent money on her so lavishly, Nancy would probably have long since obediently knelt down to suck his cock, rather than wrestling with her conscience like this.

What moved Nancy the most was that Luis, due to the System's task releases, had always proceeded step by step, thus maintaining a restrained attitude towards her.

In her view, this was him caring for her self-esteem.

If it were simply a mistress arrangement or being a kept woman, it wouldn't be necessary at all. This was also the reason her heart began to open up to Luis.

She even felt she was being a hypocritical bitch, that she wasn't even qualified to be a proper mistress, and that compared to Chloe's humble posture, she was being far too excessive.

Even with the relationship of brother-in-law and elder sister-in-law between them, her brother-in-law didn't need to cherish her so tenderly. To put it bluntly, even if he had forced himself on her that first night when she came to borrow money, she would have complied…

"Brother-in-law… do you love me?"

Nancy suddenly trembled, clutching Luis tightly. Her emotions seemed agitated, her breathing becoming rapid.

"Elder Sister, why are you asking this?"

Luis held her, gently kissing her lips. The light, fleeting touch made her lips quiver, entirely from overwhelming excitement.

After all, she was in a drunken state, where emotions only become more intense and turbulent. So Luis carefully pondered her thoughts, knowing his elder sister-in-law possessed a proud self-esteem.

She had seen more of reality than anyone, yet her resolve, her sense of pride, was stronger than anyone's.

Perhaps because of their blood tie, she was locked in such an intense internal struggle, not wanting to lose her dignity before her brother-in-law, not wanting to debase herself for money as easily as other girls.

The irony was, if it were anyone else, in that desperate situation where she had no way out, she would have certainly yielded.

"I just want to know!"

Nancy's eyes shimmered with complex emotions, a seductive haze within them as she said, "Brother-in-law, do you love me or not?"

"Love…"

Luis held her sexy, enchanting body tightly and uttered that word without the slightest hesitation. Then, with one hand kneading her breast, his other hand trailed down her abdomen, feeling her tremble as it reached the area of her pussy.

Her panties were already slightly damp.

Luis unhurriedly stroked there, savoring the warm, moist heat emanating from it.

Nancy bit her silver teeth, letting out a soft moan and offering no resistance. That single word, 'love,' made her head spin and buzz, her voice trembling slightly. "Do you truly love me??"

"Elder Sister, if I didn't love you, I wouldn't feel so unbearably frustrated."

"I admit, the first time I saw you, I truly just wanted to fuck you. If you say it was just lust at first sight, I can admit that too."

Luis began slowly pulling down her small panties, panting as he spoke:

"But in my heart, it's true you are my elder sister-in-law, and I do feel a wicked excitement, but more than that, I don't want you to suffer or see you heartbroken."

"Elder Sister, I love you, and I love Lily too. I am a scumbag."

"In my heart, I don't want any of you to feel wronged. I have always respected you."

Luis said with a serious expression, "If it were just lust, just simple coveting of your body, I wouldn't have been polite that first time in little sister's room. Elder Sister, please don't underestimate your place in my heart, okay?"

Hearing this, tears welled up in Nancy's eyes, shimmering on the verge of falling.

She was already deeply moved and felt incredibly happy, but her inner vanity, that part of her that felt like a 'bitch being coy,' needed Luis to say it out loud, to satisfy her need for reassurance.

It wasn't just because of their relationship as sister-in-law and brother-in-law, but because there was genuine love involved. This was her way of giving herself a way to rationalize it, but honestly, someone with less patience would have cursed in frustration at this situation.

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