Xu Bin glanced over and saw that his mother-in-law was still peeking. He quickly sat up, hugging his wife and adjusting their position so she lay down with her legs wrapped around his waist.
Their joined bodies were fully exposed to his mother-in-law's view. He then leaned down and kissed his wife's lips, holding her shoulders as he thrust his hard cock into her pussy.
"Ah, husband... you're thrusting so hard!"
In the dark bedroom, their breathing was ragged and soft. Shen Ruyu peeked through the door, her eyes wide as she watched the scene unfold.
Not far from them, Yao Nan's ass was almost off the ground, and Xu Bin's cock was pounding into her, each thrust eliciting a satisfied moan from her.
The bedroom had a telescope that Yao Baichuan had brought home, which Shen Ruyu had always disliked but now found useful. Xu Bin only wanted his mother-in-law to get a general idea, never imagining she was using a telescope to observe them closely. The slight glare was from the telescope's lens.
Shen Ruyu unconsciously swallowed, seeing her daughter's pussy and her son-in-law's cock glistening with wetness. It wasn't just their genitals; even their balls and assholes were slick, with fluids dripping to the floor, indicating her daughter's extreme pleasure.
The sound of their bodies slapping together was crisp and loud, matching the rhythm of their movements, accompanied by Yao Nan's satisfied moans.
Each thrust felt like a cat's scratch, making Shen Ruyu's breath quicken and her heart race. She crossed her legs, her underwear already soaked.
"Ah... husband, you're so good, you're going to fuck me to death, it's so hard..."
"Too deep, I can't take it... you're fucking me to death!"
Encouraged by Xu Bin, and lost in their passion, Yao Nan no longer held back her moans, crying out in pleasure.
Her moans were intense and heart-wrenching, but anyone with experience would know how pleasurable she was finding it. Just hearing these lewd sounds echoing in the living room made Shen Ruyu's blood boil and her body tingle.
"Husband... again, again!"
After being licked to two orgasms and fucked to two more, Yao Nan felt like she was losing her mind, never imagining sex could be so pleasurable.
As her second orgasm approached, Xu Bin felt himself nearing release but held back, excited by the knowledge that his mother-in-law was watching.
Originally, Xu Bin could last about ten minutes, sometimes even five if he was close to cumming from a blowjob. Only alcohol could extend his duration slightly.
Now, looking up, he realized fifteen minutes had passed. He marveled at the value of that single point of stamina, feeling it was well worth it. With this enhanced endurance, he could easily become a gigolo with a bit more practice.
They stopped, and Shen Ruyu, seeing them kiss, thought they were done. She glanced at the time, impressed by her son-in-law's performance.
But then, Xu Bin slowly pulled out his cock, which twitched as it exited. Shen Ruyu's first thought was that he was still hard even after cumming.
"Husband, you haven't cum yet..."
Yao Nan, limp and weak, moaned these words, startling Shen Ruyu, who couldn't believe it.
If it were Yao Baichuan... Shen Ruyu recalled their sex life from years ago. If her husband had thrust that vigorously, he wouldn't have lasted two minutes. But her son-in-law had gone on for nearly twenty.
Xu Bin then picked up Yao Nan in a bridal carry, smiling wickedly, "Wife, let's go to Mom's room and continue!"
"Naughty, no... what if she finds out? Let's go back to our room."
Yao Nan, shy and timid, was nervous and anxious, especially with her mother's authority looming over her.
"It's fine, we have plenty of time, and Mom won't be home to catch us."
With that, Xu Bin carried Yao Nan towards the master bedroom. Shen Ruyu was startled, not expecting her timid son-in-law and daughter to be so bold and adventurous, daring to make love in her room.
Panicked, she tried to hide, but the closet was too noisy, so she hurriedly hid behind the curtains, her heart racing with excitement and fear.
The bedroom light turned on, bright and clear. Xu Bin immediately noticed his mother-in-law's feet and the moving curtains. He quickly adjusted their position so Yao Nan faced away from the window.
"Husband, you're so hard... like iron!"
Xu Bin sat casually on the bed, and Yao Nan, kneeling, took his cock into her mouth, her face flushed as she looked up at him adoringly, "Husband, how long are you going to fuck me..."
"First, lick it well, and then I'll make you feel good."
Xu Bin laughed proudly.
From his elevated position, he looked down at his beautiful wife kneeling and sucking his cock, her red lips wrapped around him, submissive and obedient. Any man would be satisfied by this sight.
Yao Nan, fucked to exhaustion, sucked him for a while before showing signs of fatigue. Xu Bin guided her to turn around, "Wife, I'll take you from behind, you like this position, right..."
His fingers traced her lips, and she sucked them, mumbling, "Yes, this way... like a bitch, you fuck me so deep..."
She turned around, presenting her ass to him, eager and anticipating the storm to come.
Xu Bin stepped forward, rubbing his cock against her pussy, making her moan. He said, excited, "Wife, look at Mom's sexy clothes and lingerie..."
Yao Nan was self-conscious and conservative, always dressing plainly, even her underwear was simple, not as sexy as her mother's.
Yao Nan glanced at her mother's open wardrobe, seeing sleepwear shorter than hers, lingerie with lace and cut-outs, even thongs...
"Naughty, why bring this up... ah!"
Yao Nan's words turned into moans as Xu Bin grabbed her hips and thrust deep, his cock re-entering her tight, wet pussy.
The slapping sounds filled the room again, fast and intense. From his mother-in-law's angle, she could clearly see her daughter being fucked like a dog, moaning beneath him.
"Next time, wear your mom's lingerie during sex..."
"Naughty, no... what are you thinking..."
"Be more sexy, I'll be more excited to fuck you..."
"You're perverted... do you have thoughts about Mom..."
"No, don't be silly!!"
"I don't believe you, Mom has big breasts, you and big brother always stare at them..."
Yao Nan, usually conservative and quiet, let out passionate moans, encouraged by her husband and the privacy of their moment. Her husband's thrusts were deep and intense, the pleasure overwhelming her, and she found herself saying lewd things, unaware her mother was listening.
"Perverted husband... you're right, you're harder when you talk about Mom's breasts, ah..."
"Yeah... you're so perverted..."
Yao Nan's moans grew louder as Xu Bin, equally aroused, grabbed her breasts, squeezing and kneading them roughly as he pounded into her.
Each thrust was deep and powerful, eliciting cries from Yao Nan, who could no longer form words.
"I can't hold back anymore..."
Finally, Xu Bin couldn't resist any longer. He thrust deep, his cock swelling as he released his hot cum into her, filling her completely.
"Ah!"
Yao Nan, lost in multiple orgasms, cried out as his hot cum hit her, her body convulsing and nearly fainting, soaked with sweat.
Xu Bin also came hard, and after shooting his load, he blacked out for a moment, collapsing on top of her for a while before coming to his senses.
Seeing his wife nearly passed out from his fucking, he felt a surge of pride. He picked up her limp body and left his mother-in-law's room, remembering to turn off the light as he went.
The moment the door closed, Shen Ruyu's legs gave out, and she sat down hard on the floor.
"That boy... who knew he had it in him!"
Shen Ruyu checked the time, seeing it had been over thirty minutes of intense thrusting. This was truly animalistic performance.
Her underwear was soaked... Shen Ruyu panted, tossing and turning all night, her mind filled with images of her son-in-law's ferocious fucking and her daughter's passionate moans.