One summer afternoon when Lin Cao was nineteen, while bathing at home, he was unexpectedly bitten on the penis by some unknown insect. The penis immediately swelled to about nine inches long, the whole thing aching, numb and distended, thick, hard, and restless. Lin Cao had never experienced such a situation before, and naturally panicked. He imagined it might soon recover on its own, so with a bit of wishful thinking, he put on a pair of shorts and went to bed for an afternoon nap.
Half an hour later, Lin Cao woke up. What he had not expected was that his penis was still standing erect, with no sign of flagging at all. He tried to sit up, but instinctively felt his head burning hot and his whole body weak; he could not move at all. Only then did Lin Cao truly become afraid in his heart, and he could not help groaning.
At this moment, Madam Qin had just returned from the neighboring Granny Zhou's house. Hearing the groans, she hurried over to see what was happening. She saw Lin Cao's face and entire body flushed red, with his erect penis standing proudly beneath him, seemingly about to burst through his shorts. Madam Qin quickly asked, 'Cao'er, what's wrong with you?' Lin Cao weakly recounted what had happened during his bath.
Shiniang said, 'Cao'er, don't panic, I'll go fetch a doctor right away, bear with it for now!' Not long after, Shiniang brought back the local famous doctor, He Zhongjing.
After the famous doctor examined Lin Cao’s injuries, he stroked his long beard and said: 「This child has been injured by the thousand-year lewd insect ‘Yinchī’. Such a case is extremely rare; even I have seen it for the first time!」 Qin shiniang hurriedly asked: 「Is there any cure?」 The famous doctor stroked his beard again and said: 「According to medical records, after a mortal is bitten by Yinchī, if not treated in time, he will die from bursting blood vessels two hours later.」 Qin shiniang hurriedly asked again: 「Then how should it be treated?」 The famous doctor pondered for a moment and said: 「To put it simply, it is easy to say but difficult to do!」 The shiniang cried out: 「So there is no cure after all. Sir, I beg you, you must think of a way!」 After saying this, the shiniang knelt down before the famous doctor.
The famous doctor quickly helped Qin shiniang up: 「Madam, there is no need for such a grand gesture. In fact, there is still one method!」 The shiniang hurriedly said: 「Then please speak quickly!」「Judging from this child’s current condition, there must be a woman who is already experienced and has profound internal power, and she must use the method of yin-yang union to guide the poison in his body. To put it more specifically, the woman should use her yin organ to completely hold the child’s yang tool in her mouth, without moving, and then use inner force to fuse the poison within his body. After two hours, this child’s life should no longer be in danger! However, after this union, the lust within both of them will be stimulated to an unprecedented degree. After that, it will become uncontrollable!」「Thank you, sir. Saving Cao’er’s life comes first! I’ll go find such a woman right away.」 After thanking him, the shiniang escorted the famous doctor out the door.
After seeing off the famous doctor, the master's wife pondered who to find for this task. After much thought, she couldn't come up with a suitable candidate. Another half an hour passed. Then she heard Lin Cao softly moaning inside the room, and her heart tightened with anxiety. Suddenly, an idea flashed: Hey, isn't I myself the best candidate? I've practiced martial arts since childhood and have deep internal strength, which is exactly what's needed to heal Cao'er now. But the ethics... Hearing Lin Cao's moan again! Master Lin's wife made a painful decision: There's no time to worry about that now; saving Cao'er is the priority. Having decided, she hurried into Lin Cao's bedroom.
“Cao’er, let Shiniang take a look at your injury.” Pulling down Lin Cao’s shorts, she saw that his penis seemed even more swollen and red than before.
“Cao’er, let Shiniang help you take off your pants.” “Shiniang, have you found someone to save me?” “Mm, found one!” “Why didn’t I see anyone come in?” “Isn’t Shiniang a person?” “What, Shiniang, you—how could this be?” Although Lin Cao had never experienced such matters, he still knew not to look at what should not be looked at, and that men and women should be kept apart; not to mention that this was his elder, his master’s wife. To actually face Shiniang naked and join genitals with her, he truly did not dare.
“Cao’er, there’s no time to worry about that now. Shiniang has to save you first.” “But, Shiniang—” “No buts. Close your eyes and lie on your back.” Lin Cao had no choice but to do as Shiniang said.
Soon after, Lin Cao felt a small hand grasp his penis, and then the penis was enveloped by a soft flesh pit, very warm, very wet, very comfortable. Then he felt two extremely elastic flesh mounds press against his chest, also indescribably comfortable. He also clearly smelled a fragrance he had never smelled before, and Lin Cao felt he was about to faint. But Shiniang said to keep his eyes closed, and at this moment he did not dare open them to see where this feeling came from. Before he could even faint, a pleasant hot breath blew on his face. “Cao’er, do not open your eyes. Shiniang is healing your injuries.” Lin Cao did not even dare move a bit more.
After two shichen had passed, the redness all over Lin Cao’s body faded away. Seeing this, Madam Shi rose up to put on her clothes and said, “Cao’er, Shiniang will get up now. Don’t you open your eyes, and don’t move.” How would Lin Cao dare move? He was even less daring to open his eyes. After a while, Lin Cao only felt that the two masses of flesh pressing on his chest had left him, and he immediately felt as if something was missing. Then he felt two small hands supporting his waist, and the flesh pouch also began to spit out his penis. However, just as the flesh pouch was about to spit out the penis and release it from the furnace, he suddenly felt a suction force pull the penis back into the flesh pouch again. The flesh pouch swallowed the penis whole once more.
Lin Cao felt an indescribable pleasure in his lower body, and at the same time heard his shiniang let out an "ah" sound. Instinctively, Lin Cao opened his eyes to see what had happened. However, what appeared before his eyes was a pair of beautiful breasts. This was his first time seeing a woman's chest, and he immediately felt a bit dizzy. It must be known that Qin Shiniang had practiced martial arts since childhood and had long cultivated a good figure. Just looking at those breasts, not too big, not too small, yet full and firm. The two nipples were round and large, standing proudly and gracefully atop the breasts.
Lin Cao's gaze hurriedly swept downward, only to see his own meat rod being enveloped by a dark, fuzzy flesh nest at Shiniang's lower body. Shiniang was riding on top of him, her wasp waist and broad hips looking utterly captivating. Lin Cao couldn't help but feel dizzy again. When he shifted his gaze to Shiniang's face, he found that she was also looking at him. Their eyes met, and both couldn't help but feel somewhat shy, their faces instantly turning red.
At this moment, I heard my master's wife say softly: 'Cao'er, close your eyes quickly. I never expected such strong attraction between the sexual organs; I can't pull it out. Doctor He didn't mention this. Don't move, let me try again.' The master's wife tried to get up again but was sucked back by what was beneath her. This time, Lin Cao didn't dare open his eyes. The master's wife tried a few more times, but the situation remained the same. It only tormented Lin Cao beneath her; each time the master's wife was sucked back, Lin Cao's lower body felt indescribable pleasure. He wanted to cry out but didn't dare. Seeing that several attempts were unsuccessful, the master's wife thought it might be better to gently grind a few times first, then suddenly pull away to get out.
Unexpectedly, a sudden pull caused a sudden suction. After such friction between their genitals, both couldn't help but feel waves of pleasure. Lin Cao knew it felt good but dared not cry out; as the master's wife, she was too shy to moan. The master's wife then thought, since this way didn't work and that way didn't work either, why not continue this friction? Perhaps after a while, it could naturally be pulled out.
Then the shifu's wife began to gently move her waist back and forth. With every movement, the flesh walls tightly wrapped around Lin Cao's penis, bringing wave after wave of tingling pleasure. Lin Cao kept his eyes tightly shut, yet couldn't help letting out low gasps. Hearing his voice, the shifu's wife gradually blushed as well, and her movements unconsciously quickened a little.
“Cao’er... how do you feel?” Shiniang asked softly, her voice carrying a hint of trembling.
“Mistress... so hot... so tight...” Lin Cao answered honestly, his face red as if blood were about to drip from it.
The master's wife's heart stirred, her movements not daring to stop. She originally intended to finish quickly, but the lewdness aroused within her made her sink deeper. Her meat hole began to involuntarily contract, swallowing and spitting that thick, hard penis. Lin also gradually recovered from his initial nervousness, instinctively thrusting his hips upward slightly to meet the master's wife's movements.
"Ah..." Finally, Shiniang couldn't help but let out a soft moan. She lowered her head and looked at the young man beneath her. Only to see his eyes tightly closed, his brows slightly furrowed, looking both comfortable and afraid to let himself go, which couldn't help but arouse pity in her, while also stirring an even stronger desire.
Time slipped away bit by bit during intercourse. Two hours had long passed, the toxicity had long been neutralized, yet neither of them suggested stopping. Shiniang's movements became increasingly fluid, shifting from initial exploration to rhythmic rising and falling. Each time she sat down, the penis reached the deepest point; each time she lifted, it brought out sticky, wet sounds.
Lin Cao finally mustered his courage and opened his eyes. He saw Shiniang's full breasts swaying gently with the movement, the nipples already erect; he saw her tightly closed eyes and slightly parted lips; he saw the wetness at their point of union. He reached out his hand and tentatively grasped Shiniang's waist.
Shiniang's body trembled, but she didn't stop him. Instead, she actively leaned down, pressing her breasts against his chest, and whispered, 'Cao'er... since it's already come to this... just feel it properly.'
Lin Cao nodded, his hands sliding from her waist to her buttocks, gently holding them. Shiniang's movements became more proactive, starting to find the most comfortable angle herself. The room was left with only the subtle sounds of flesh colliding and suppressed panting.
After an unknown amount of time, Lin Cao suddenly felt a strong tingling numbness rise from his lower abdomen. Nervously, he grabbed Shiniang’s arm: "Shiniang... I think... I’m going to..."
Shiniang understood immediately, but instead of getting up, she held him tighter and whispered, 'It's okay... to cum...'
Lin Cao could no longer hold back, his waist thrusting fiercely, releasing all his scalding semen into Shiniang's body. Stimulated by this surge of heat, Shiniang herself reached climax, her body trembling violently, her flesh cave tightly gripping his penis, sucking every last drop clean.
After the climax, the two held each other tightly, neither willing to part immediately. The mistress's breathing gradually steadied, yet she still lay on Lin Cao's body, whispering softly, 'Cao'er... from now on... there is no turning back between us.'
Lin Cao held her, feeling the lingering pleasure within his body, and responded softly, "Shiniang... I will practice diligently... and use my internal energy to protect you."
The master's wife looked up, seeing his clear eyes already tinged with desire, and suddenly smiled: 'Good. Then starting tonight... let's dual cultivate properly.'
The sky outside the window gradually darkened. In the room, the two were tightly entwined once again. This time, it was no longer for healing wounds, but because of the desire that had been completely ignited within each other.
From this night on, the relationship between Lin Cao and Qin Shiniang completely changed. By day, they remained master and apprentice; at night, they became each other’s most secretive dual-cultivation partners. The aftereffects left by the insect of lust made their desires extraordinarily intense, and they almost had to couple once every few days to calm the restlessness inside their bodies.
The master's wife began systematically teaching Lin the method of combining bedroom arts with internal energy circulation. Each union advanced Lin's skill a bit and made the master's wife's body increasingly inseparable from his penis. They tried various positions, from the initial woman on top to doggy style, side-lying, even standing. Each time, the master's wife would use her internal energy to guide his essence, benefiting both.
Once, Shiniang couldn't help but cry out during climax. Lin Cao panicked and asked what was wrong, but she just held him tightly and said, 'Cao'er... Shiniang belongs completely to you now.'
Lin Cao kissed away her tears and said earnestly, "Shiniang is also mine."
The days passed one by one like this. The villagers only thought the master's wife was diligently teaching this disciple, unaware that this nominal master and disciple had long since explored each other's bodies thoroughly in the quiet of the night.
And the mark left by that thousand-year lustful worm also became the deepest and sweetest secret between them.
The days after that felt as if gently covered by a thin veil.
On the surface, everything remained normal. Lin Cao still woke up early in the morning to practice martial arts, clean the courtyard, and pay respects to his master's wife. Madam Qin still sat dignifiedly in the front hall, explaining mental techniques and formulas to him, occasionally pointing out flaws in his moves. Villagers passing by would only see a proper master and disciple; no one could tell what had happened on that bed at night.
But once night fell and the door was closed, all the rules turned to ash.
The first truly meaningful 'dual cultivation' was on the third night after the injury healing.
Lin Cao went to pay his respects as usual, but Shiniang asked him to stay. The lamplight was dimmed, and she had already changed into a thin undergarment, the collar slightly open, revealing her collarbone and a bit of snow-white skin. Lin Cao stood in place, his heart pounding fiercely.
"Come here." Shiniang's voice was very soft.
He walked over and sat down on the bed, where she took his hand and led him to sit beside her. His shiniang said nothing, only lowered her head and untied his sash. Her movements were slow, but carried a gentle firmness that would not be refused. Piece by piece, their clothes fell away, and soon the two stood naked before each other.
This time there was no poison forcing them, nor any urgent reason. Lin Cao could clearly see Shiniang's body—her slender waist, rounded buttocks, full but not exaggerated breasts, and the already slightly damp area between her legs. He reached out, tentatively touching her nipple. Shiniang trembled slightly but did not pull away.
“Use inner energy,” she guided softly. “Don’t just focus on feeling good. Direct your true qi in, from your dantian to the place of union.”
Lin Cao followed her words and circulated his internal energy. The moment he entered her body, both of them let out a soft moan simultaneously. The feeling was completely different from during the healing process. There was no urgent fear, only a slow and deep fit. Shiniang's internal energy was as gentle as water, enveloping his penis, guiding his true qi to flow through their respective meridians.
He began thrusting in a rhythmic pattern. With each entry, he could feel the warmth inside Master Wife's body; with each withdrawal, it brought out sticky wet sounds. Master Wife's hand pressed against his back, helping him adjust his breathing and the position of his force. Gradually, the two of them synchronized, as if practicing some never-before-seen martial art.
When the climax arrived, Lin Cao instinctively wanted to withdraw, but was entangled by his shiniang's legs.
「Come inside.」 Her eyes half-closed, her voice trembling, 「let our energies merge……」
The moment the scalding semen rushed into her body, Lin Cao felt his inner energy as if gently grasped by a warm hand, then slowly returned to his dantian. The shiniang also reached her climax simultaneously, her body trembling slightly, her flesh cave tightening rhythmically.
Afterward, the two lay side by side. Mistress reached out and stroked his chest, and said in a low voice: "From today on, every three days, we will dual cultivate like this once. Your power will improve several times faster than others."
Lin Cao nodded, but in his heart, he was clear—what he wanted had long been more than just skill.
A month passed like this.
Lin Cao's internal energy indeed advanced with astonishing speed. Meridians that originally required half a year to unblock showed faint signs of breakthrough within a month. Several peers in the village watching him practice showed envious expressions, unaware of the real reason.
And Qin Shiniang's changes were even more subtle. During the day, she remained dignified, but at night, she became increasingly proactive. Sometimes, after he finished practicing his martial arts, she would directly pull him into her room; other times, while teaching him mental techniques, she would deliberately press her body close, letting him smell the faint fragrance at her neck.
One night, after they finished once, Shiniang suddenly straddled him, slowly rising and falling on her own. Moonlight shone through the window crack, falling on her heaving chest. She looked down at him, her eyes frighteningly bright.
“Cao’er,” she said softly like water, “do you know, Shiniang hasn’t felt this comfortable in a long time?”
Lin Cao held her waist and answered honestly, "Shiniang... I don't want to stop either."
She smiled, but suddenly sped up her movements. This time they didn't deliberately guide their inner energy, simply indulging in the physical pleasure. The mistress's moans grew increasingly unrestrained until she finally went limp against his chest, her body still trembling slightly.
From that night on, the frequency of dual cultivation gradually changed from once every three days to once every two days, and sometimes even once a day.
They began trying more positions.
Shiniang liked being taken from behind the most. She would lie down on her own, arching her back low, and look back at him. When Lin Cao entered from behind, he could clearly see how he disappeared into that wet, soft, dense place with each thrust. His hands would reach around to the front, kneading her nipples or gently pressing her lower abdomen. Every time Shiniang was treated like this, she couldn't help but bury her face in the pillow, emitting soft and seductive sounds.
Sometimes it was side-lying. The two faced each other, with their legs intertwined. This position didn't go in very deeply, but it allowed for long, slow rubbing. The mistress would, while enduring his movements, use her hand to help massage the waist acupoint, allowing the vital energy to circulate more smoothly. Afterward, she would often use her mouth to clean up the remaining semen, her movements meticulous as if completing an important lesson.
What Lin Cao found most unforgettable was one time standing up.
That night, Shiniang practiced her exercises until late, her body still covered in a light sweat. She pulled him against the wall, lifted one leg, and let him enter from the front. The coolness of the wall and the heat inside her formed a sharp contrast. Lin Cao held her buttocks, thrusting upward forcefully. Shiniang leaned her back against the wall, arms wrapped around his neck, trembling slightly each time he reached the deepest point.
By the time it was over, she could barely stand and could only hang on him with her whole body. Lin Cao simply picked her up and walked to the bed without pulling out. The bumps along the way brought Mistress-in-law to orgasm once, soaking his lower abdomen slick.
“Cao’er... you’re getting more and more skilled.” She laughed breathlessly.
Lin Cao placed her on the bed, leaned over to enter her again, and whispered, "It's all because Shiniang taught well."
As time passed, the tacit understanding between the two grew deeper.
During practice in the day, just one glance, and Lin Cao knew his martial arts master's wife wanted it that night. Sometimes she would intentionally bump him lightly with her body while explaining moves; sometimes she would adjust her collar in front of him, letting the neckline slip lower. Lin Cao, in turn, learned to hug her from behind when no one was around, reach into her clothes, and gently knead her increasingly sensitive breasts.
Once, they almost had an incident during the day.
The master's wife was teaching him breathing exercises in the back garden, with no one around. During Lin's practice, she suddenly pulled him into the woodshed. Once the door was closed, she actively untied his belt. That time they did it urgently and fiercely, the woodshed filled with suppressed panting and the sound of bodies colliding. After finishing, the master's wife leaned against the wall straightening her clothes, her face still flushed.
“No next time during the day.” She warned him, though her eyes were impossibly soft.
Lin Cao nodded, but in his heart, he was already planning the next opportunity.
The aftereffects left by the lewd worm always remained. Every few days, Lin Cao would feel a wave of heat in his lower abdomen, and his penis would involuntarily rise. At such times, he only needed to glance at his master's wife, and she would understand. The two would find an excuse to return to their room early, close the door, and use intercourse to quell that fire.
Sometimes the fire comes especially fiercely. Lin Cao would take her two, three times in a row. Shiniang initially would softly complain 'Cao'er is too greedy', but her body responded with increasing passion each time. Her internal energy also became more refined through each dual cultivation session, her skin grew fairer and more delicate, her eyes often carrying a soft, watery glow.
People in the village began to gossip, saying that Mrs. Qin had been glowing recently, as if she had regained some youth. Others said that Lin Cao was making rapid progress and would surely achieve great things in the future. No one connected these two matters.
Only they themselves know that the real reason is hidden in every night of entanglement.
Two more months passed.
Lin Cao's internal energy had faintly touched the threshold of foundation establishment. Shiniang was both happy and somewhat uneasy about this. She knew clearly that once he broke through, he should go down the mountain to travel and see the broader world. And she, after all, was just a secret from his youth.
One night, after finishing, she suddenly buried her face in his chest and didn't speak for a long time.
“Cao’er,” she finally said, her voice very light, “if you have a girl you like in the future... treat her well. I’ll take care of things on my side myself.”
Lin Cao was stunned. He turned her face towards him, looking seriously into her eyes: "Is Shiniang trying to send me away?"
"I’m not trying to kick you out." She smiled, but her eyes were a little wet. "I’m reminding you. Between us... in the end, it’s not proper, and it’s not legitimate."
Lin Cao remained silent for a long time, finally just holding her tighter: "Then, before that status arrives, Shiniang, let me properly cultivate through dual cultivation first."
Shiniang didn't speak again, but instead actively kissed his lips.
That night, they did it especially slowly, especially deeply. As if trying to compensate in advance for all the nights they might lose in the future.
The moonlight outside the window was very bright.
In the room, two bodies tightly intertwined once again.
The mark left by the lewd worm still pulsed faintly in their blood vessels, reminding them—this forbidden affair that started by accident had long become the deepest part of each other's lives.
And the story was far from over.
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