Perhaps Aunt Lu's body had aroused after witnessing Uncle Lu and Mother having sex; perhaps she wanted a change; perhaps the scent of my brother and me made her feel safe.
In the end, Aunt Lu didn't push my brother away; instead, she leaned closer to him.
After receiving Aunt Lu's response, my brother gently kissed her fair neck, while I reached out and lifted her long skirt, then began to caress her long, beautiful legs.
Separated only by a wall, Uncle Lu was inside having sex with Mom and Dad, while Aunt Lu outside was trying to accept my brother and me's lewd acts.
When I followed her long, beautiful legs and touched her panties, which were soaked with her juices, her body trembled slightly, and she said in a trembling voice, "No! Not here, please, let's go somewhere else?"
Seeing her pleading look, my brother and I pulled her towards Yin Yin's room.
Upon arriving at Yin Yin's room, we led her to the spot where her younger brother had been peeping, making her look inside. Her brother then asked, "Mother-in-law, what do you see?"
Yin Yin was straddling Yang Xinwu, her cunt incessantly swallowing and releasing his thick penis, while Peng Dashan, holding Yin Yin's plump buttocks, excitedly fucked her anus.
At the same time, Yin Yin was also vigorously sucking on two thick penises.
Seeing her own daughter being fucked by several men, Aunt Lu stared in disbelief.
Although she had heard rumors of her daughter having sex with servants, and her son had said he had fucked her daughter's cunt, Aunt Lu never imagined her daughter would be so wanton.
Watching her daughter skillfully serve four men simultaneously, Aunt Lu realized this was definitely not Yin Yin's first time engaging in group sex.
Seeing her daughter's lewd behavior with the man, Aunt Lu had no intention of disciplining her daughter; instead, she felt nothing but envy for Yin Yin.
Yes, envy. Envy that she could shamelessly enjoy her sexual desires; envy that she could skillfully serve several men.
Seeing her daughter engaging in lewd acts with a man inside the house, while she, her son-in-law, and his brother-in-law secretly watched from outside, was a scene she had never dared to imagine before.
Yet, this scene was indeed unfolding in reality.
Just as she was intently watching the man's thick penis moving in and out of her daughter's vagina and anus, a strange sensation in her lower body drew her attention away.
She realized that her panties had been pulled down to her knees, and her elegant long skirt had been lifted to her waist.
As she was still surprised, a hot, thick penis was already pressed against her vulva, gently rubbing against it.
"No... Tianyun, I'm your mother-in-law! We can't betray Yinyin!"
Aunt Lu said softly, but her tone lacked any resolve; it was an instinctive outburst, spoken without thought.
Because the one betraying her was none other than her beautiful daughter.
Aunt Lu was incredibly alluring at this moment, her full buttocks raised high, her white conservative panties pulled down to her knees, and the lustful fluid flowing from her vulva continuously drenching her brother's glans.
Combined with her flushed face and soft moans, her refusal sounded more like a seduction.
"My dear mother-in-law, your daughter betrayed me first! Look at her wanton appearance, I wonder how many times she'll cuckold me in the future. If you want our life to be harmonious, mother-in-law, you'll have to sacrifice your body for me!"
The brother said with a laugh, rubbing his glans against Aunt Lu's vulva.
My brother's words surprised me a bit, because he used to be so innocent and would never say such things. I wondered what he had been through these past few days.
However, seeing my brother's mischievous smile, and seeing Aunt Lu rubbing her hips against my brother's thick penis while verbally refusing, my own penis began to stir.
"Auntie, you'd better let my brother fuck your cunt! Otherwise, he might be unhappy with Yin Yin! You, as his mother, don't want your daughter to be sad, right?"
I whispered in Aunt Lu's ear while kneading her full breasts.
"Mmm~~~~ Good son-in-law, I promise you, as long as you and Yin Yin are loving and affectionate, I'll agree to anything!" Aunt Lu said softly after finding an excuse to accept my brother.
Hearing Aunt Lu's reply, my brother chuckled softly, grabbed her full buttocks, and thrust his thick penis deep into Aunt Lu's body.
I know very well how powerful my younger brother's penis is; it's comparable to Shaoqing's.
Before, he was considerate of us and never went all out, otherwise all the women in the family would become his sex slaves.
But with Aunt Lu, he was determined to conquer her, so his penis pounded into her mercilessly.
"Ah~~~~" Aunt Lu couldn't help but let out a soft moan as my brother's thick penis entered her, but she immediately suppressed it, afraid of being heard by those inside.
The pleasure my brother's penis gave Aunt Lu was astonishing. She hadn't expected his penis to feel so good, even comparable to the pleasure Shaoqing gave her.
Holding Aunt Lu's plump buttocks, my brother began to slowly thrust his penis in and out.
"My dear mother-in-law, your cunt feels so good to fuck, so warm and wet. With such a wonderful cunt, why don't you enjoy the pleasure of fucking it to the fullest? Father-in-law is truly pitiful!"
The younger brother said, increasing the speed and force of his thrusts.
"Slap…slap…slap…" The sounds of flesh colliding echoed with their movements, reaching Yin Yin's ears as she was inside, fucking the servants.
Excited by the music, she became even more wanton, fucking the men with increasing slutness.
"Aunt Lu, look at how slutty Yin Yin is! She's having so much fun! You should learn from your daughter and completely liberate yourself! Uncle Lu will be happy too!"
As I spoke, I pulled off her top and sandwiched my erect penis between her full breasts.
"I...I dare not, I'm afraid my husband will think I'm a shameless woman, I...I..." Aunt Lu said, swaying her hips to meet the thrusts from behind.
"Mom, don't be afraid! Didn't you see how Father-in-law played with my father and mother? The more slutty and shameless you are, the happier Father-in-law will be! You two have already wasted decades of your lives, do you want to waste the rest?"
The younger brother said, thrusting hard into Aunt Lu's plump buttocks.
"Oh~~~~Mom can't take it anymore! Good son-in-law, be gentle! Mom's cunt...can't take you...fuck me like this!"
Under the younger brother's fierce thrusts, Aunt Lu immediately begged for mercy.
However, although she begged for mercy, her hips swayed even more lewdly.
"Smack!" The younger brother slapped his mother-in-law's plump buttocks, thrusting harder while saying, "What are you begging for? After all these years of fucking, you can't even handle a young man like me? You old cunt are so useless. Look at your daughter, she can serve four dicks at once without a problem. You, as a mother, are so useless. Shake your ass hard, and shout that I'm fucking you well, that you like being fucked by your son-in-law's dick, that you're willing to be his bitch."