Bathed in the soft glow of candlelight, the spacious bedroom exuded an aura of intimacy and secrecy. The man, clad in embroidered silk, leaned against a wooden column adorned with delicate carvings. Beside him, the woman, her eyes reflecting the flickering flames, stood with an air of both anticipation and trepidation. The tranquility of the night wrapped around them like a velvet cloak as they exchanged whispered words.

"Don't worry," the man murmured, his voice a soothing melody in the stillness. "Your husband will not return home until tomorrow."

"But the servants are nearby," the woman replied anxiously. "What if we are discovered?"

"Xue'er, there's nothing nothing to fear," the man reassured her. "I have already taken care of that. I cast a sleeping spell on all the servants, so they will not wake up until morning"

"We've been sneaking around for years now, we never crossed that line before, now it's a perfect time"

In the quiet intimacy of the chamber, Fang Xin, the sect master of the Dual Cultivation Sect, and Tang Xue, the esteemed main wife of the Tang Clan, found themselves at the intersection of secrecy and desire. 

With a mischievous grin, Fang Xin pulled her close and kissed her passionately. Her lips were soft and warm, and she tasted of honey and rosewater. As their tongues intertwined, the heat between them grew and grew.

"When was the last time you did it with your husband?"

"We never did it 10 years ago after the accident"

"To think the feared Tang clan head can't even satisfy his wife"

"Don't say th.. Ahhn~"

Tang Xue moans in pleasure as Fang Xin's skilled fingers explore her body. He knew exactly where to touch her, how much pressure to apply, and how to make her gasp with ecstasy.

"You're so wet already, did you miss me that much?"

"Don't... talk... Ahh~"

Tang Xue moaned louder as Fang Xin pushed her down onto the bed. With one hand, he caressed her breasts and teased her nipples, while his other hand worked its magic between her legs. His fingers slipped inside her, and he felt her walls clench around them.

"Please..."

"Please what?"

"I want you inside me"

"Beg for it, beg for it like a good girl"

"Please, I want you to fuck me! I want you to fill me up and make me scream! Please, please, please, please...

"Well since you said please"

Fang Xin grinned and spread Tang Xue's legs. Then, with one smooth thrust, he entered her, causing her to cry out in pleasure.

"Look Xue'er, we are finally completely united"

Tang Xue wrapped her arms and legs around Fang Xin and pulled him deeper into her. He responded by thrusting harder and faster, driving them both to the edge of climax. They clung to each other, bodies entwined, as the waves of pleasure crashed over them.

"You're so tight..."

Fang Xin began to move inside her, setting a steady rhythm that soon had her arching her back and moaning his name. She wrapped her arms and legs around him, pulling him deeper and deeper inside her with every thrust.

"More, more, please..."

Fang Xin began to pick up the pace, driving himself into her with wild abandon. Her nails dug into his back as she writhed beneath him, and her cries of pleasure echoed through the night.

"I'm close, I'm so close..."

"Then come for me"

With a few final, deep thrusts, Fang Xin pushed her over the edge. She cried out his name as her climax hit, her body shuddering with waves of pleasure. He followed soon after, spilling his seed deep with a very pure Yang Qi inside her with a groan of satisfaction.

"We're far from finished"

"Wha- Aah!"

Tang Xue's eyes widen as Fang Xin enters her again, hard and throbbing.

"We've just started"

Fang Xin grins and begins to move.

"Ah! So soon?! Ah!"

Tang Xue moans in surprise, as Fang Xin moves within her.

"That's right, ah!"

Fang Xin grunts, and continues his rhythmic movements.

"Ah! Ah! So good!"

Tang Xue's cries grow louder, as Fang Xin continues his relentless assault.

"You're so tight! I can feel you, ah, clenching around me"

"Aaah, so deep!"

Tang Xue screams in pleasure, her body writhing beneath Fang Xin.

"Ah~ You are truly a sex demon," Tang Xue said with a moan.

"I haven't even shown you countless techniques that gave me the title of Sex Demon"

"Then show me everything"

"As you wish"

Fang Xin grinned as he continued his relentless pace. Tang Xue's cries of pleasure filled the air as she clung to him, lost in the throes of ecstasy.

The hot session between them lasted for more than 7 hours until Fang Xin noticed something weird happening in his body

"Ugh" 

Noticing Fang Xin's weird behavior, Tang Xue asked.

"What's wrong Fang Xin?"

Fang Xin held his next and an ominous green foam started to show up from his mouth.

"Fang Xin" Tang Xue panicked.

"It's poison.. and a very strong one too"

"No way"

Fang Xin tries to channel his qi to dispel the poison from his body.

"How.." Fang Xin murmured

The poison is so strong that his qi is not strong enough to dispel it.

Fang Xin's body started to weaken and soon enough he fell on top of Tang Xue.

"Fang Xin.."

Currently, Fang Xin thinks very fast in his head about how he even got poisoned and after eliminating everything, he reaches a conclusion.

"Xue'er.. are you.."

'Did Xue'er betray me?..'

'No.. from her expression, it seems like she doesn't know anything.'

*COUGH *COUGH

"Fang Xin!" Tang Xue screamed in tears.

"Xue'er... the poison.. it's from your womb"

"What?" Tang Xue's eyes widen in shock.

As the venomous poison surged through Fang Xin's veins, its insidious effects took hold with ruthless efficiency. His once-alert eyes, burdened by the destructive force, began to droop under the weight of impending darkness. A heaviness settled upon him, and the room seemed to blur around the edges. The realization dawned upon him, a bitter acknowledgment of the irreversible fate that awaited.

"Is this how it ends?" Fang Xin's voice, though weakened, held a tinge of disbelief. His gaze, now hazy, met Tang Xue's tearful countenance beside him. In that poignant moment, their shared clandestine journey faced an unexpected, tragic conclusion. 

Fang Xin's eyes, once filled with resilience, succumbed to a final blur before the world plunged into an encompassing darkness. With a solemn inevitability, the notorious Sex Demon, the once indomitable sect master of the Dual Cultivation Sect, met his demise.