After being bitten by a schoolmate

Yu Li's proposal to take a nap together moved Gu Chengfeng's heart.

The marker pen in his hand was also thrown on the desk, and he looked up at Yu Li.

Yu Li was tickled by his obedient appearance, and knew that he was beginning to waver: "You are so sleepy, you might as well rest for a while, and when you wake up, you will be more efficient."

He deliberated and added some chips: "Besides, you know that when you were pregnant with decimals, I memorized the physiological knowledge of Omega. I will teach you in a while, and I will definitely get twice the result with half the effort."

Gu Chengfeng was easily persuaded by him.

In fact, he was so sleepy right now that he couldn't even read the words on the book clearly.

Indeed, it won't help if you spend it like this.

Besides, Yu Li's lectures are very simple, which is many times better than that of the teacher.

Gu Chengfeng probably knew this when he gave Yu Gaoshu a prenatal education class.

Listening to him in class is better than trying to cram knowledge points into your brain, but you can't get a single word into it.

After Gu Chengfeng figured it out, he immediately threw away the pen, got up and stretched a long way.

He was wearing a short home jacket, which was lifted up with the action top, revealing a tight waistline.

Youthful and vigorous, the strength contained in it is faintly visible.

Yu Li glanced at it calmly before turning around and entering the bathroom first.

"I'm going to wash up."

When Yu Li simply washed off his exhaustion and came out in pajamas, Gu Chengfeng had already nestled into the bed.

Seeing Yu Li coming out all wet, he yawned and lifted the quilt, patting the empty seat beside him.

"Come up quickly."

There is no sense of AO giving or receiving.

Yu Li had already subtly raised people to be unsuspecting of him, so he nodded in satisfaction and got into bed.

The afternoon sun warmed the quilt.

Yu Li stayed up all night for several consecutive nights, and his spirit was highly concentrated. Even if he was a strong Alpha, his body would inevitably show exhaustion.After a brief chat with Gu Chengfeng, he fell asleep.

The two of them fell into a deep sleep.

When I woke up, it was already 07:30 in the evening.

At this time, the sun had just set and the moon had not yet risen.

The sky is a quiet dark blue.

Yu Li stared at Gu Chengfeng's sleeping face in rapt attention, his eyes filled with deep emotions.

The world was as quiet as if there were only the two of them left.

Not long after Yu Li woke up, Gu Chengfeng also slowly opened his eyes.

He was a little sleepy, and asked lazily with a nasal voice: "What time is it now?"

Yu Li replied, "07:30, are you hungry?"

The warm breath sprayed on Gu Chengfeng's ears, causing a burst of itching, and Gu Chengfeng couldn't help touching his ears.

"It's so late..."

He rubbed his stomach: "Not hungry at all, how about you?"

Today's lunch was made by Du Qinyun himself. Gu Chengfeng ate too much, so he doesn't want to eat yet.

What's more, the bed was so warm that I couldn't bear it.

Yu Li's breathing was right next to his ears, deep and shallow like a rhythmic silent music.

"I'm not hungry yet. If you're not in a hurry..."

Yu Li turned on a warm yellow reading lamp, took something from the bedside, and flashed it in his eyes——

"Then we start to review the physiology knowledge class?"

Gu Chengfeng: "???"

The light was not on, so Gu Chengfeng got closer, and then he saw clearly that what Yu Li was holding in his hand was the "Basic Knowledge of Omega Physiology" used for the exam.

I don't know when he brought the book over.

Just after waking up, Gu Chengfeng's mind was still not clear enough, so he only complained lightly: "It's such a rush."

He was about to sit up from the bed: "...OK."

Yu Li grabbed him and said, "Just lie down."

He stared deeply at Gu Chengfeng, his eyes were full of emotions, and when he looked carefully, there was a hint of expectation hidden deep in his eyes.

Following Yu Li's strength, Gu Chengfeng shrank back again.

Lazily evoked a warm smile.

"Teaching in bed? This method is good."

Yu Li let out a "hmm", opened the catalog page of basic knowledge, and scanned it.

"There are two weeks left, and the time is a bit rushed. If we simply sort out the knowledge points, the effect may not be very good. We have to use some vivid examples."

Yu Li's voice was lowered, and it slowly penetrated into Gu Chengfeng's ears, carrying a sultry magnetism.

"Instance?"

"Yes, compared to words, personal experience can make a deeper impression. Chengfeng, in terms of examples, there is no one more suitable than you here." Yu Li stared at Gu Chengfeng intently for a moment.

"me?"

"Tell me how to teach."

Gu Chengfeng put his arms on his head and said lazily.

In the next second, a pair of warm hands suddenly covered his eyes.

The world is dark, but not completely black, and a little warm orange light can be felt at the edge.

"Section [-], the basic structure of the gland."

Very close to the ear, came the familiar and gentle voice.

The master of the voice whispers—

"Glands, the unique organs after Omega differentiation, are located in the back of the neck."

Accompanied by a solemn, but slightly deliberately low voice, a palm with well-defined knuckles slowly moved upwards from behind Gu Chengfeng...

Finally, it stopped at the back of Gu Chengfeng's neck.

The pale pink soft flesh on the back of the neck seems to be a stamen that has not yet bloomed, which is attractive to pick.

Gu Chengfeng was still blindfolded, his eyelashes were lightly fanned, and they fell gently into Yu Li's palm like a feather.

It evoked a burst of numbness.

He maintained a calm tone, covered Gu Chengfeng's eyes with his right palm, and also concealed the turbulent waves in his own eyes.

"right here."

Unhurriedly, he circled the small piece of skin on the back of Gu Chengfeng's neck and continued to teach.

"There are many ways to stimulate the gland, like mine, and this is the easiest one."

"If you go deeper, have a little pheromone on your fingertips."

For some reason, Yu Li's voice was far and near, but Gu Chengfeng couldn't hear it clearly.

Maybe his attention was attracted by Yu Li's fingers.

The fingertips were slightly cool, and the force that landed on the gland was gentle, like a small flame, beating lightly in his heart.

Gu Chengfeng suddenly smelled the smell of snow mountains.

The irritation at the back of the neck intensified, and a little bit of Alpha breath rubbed into the body along with the touch of the skin.

Very comfortable.

A sense of joy that I don't know came from surged up from my limbs.

He snorted, and Yu Li's voice fell on his ears like a hook——

"This involves the second knowledge point, the role of pheromones."

Gu Chengfeng's attention was all attracted by Yu Li's hands on the back of his neck.

"The first role of pheromones is to perceive emotions."

"Chengfeng, what mood am I in right now?"

Gu Chengfeng felt it.

Because the eyes cannot see, the senses are more acute.

Yuli's pheromones are so familiar to him, when he is calm, it is a silent snow mountain; when he is happy, there is light snow flying in the sky; when he is angry...

Yu Li hadn't been angry in front of him yet.

At this moment, Yuli's pheromones are full of the breath of snow-capped mountains, and the hurricane is transformed into a gentle breeze, jumping briskly in the clear breath.

"Should it be...joy?"

"Ah."

In fact, there are some deeper desires, but he hid them well so that Gu Chengfeng didn't find out.

"The second role of Omega pheromone," Yu Li paused, "communication."

Gu Chengfeng heard Yu Li's seductive whisper: "Chengfeng, put a little pheromone."

It was as if the devil was tempting Adam to pick the forbidden fruit from the tree.

Gu Chengfeng released the pheromone obediently.

The aroma of coconut milk swayed lightly, captured by the cool breath of the snow-capped hurricane, and mixed together.

The "communication" this time was not in-depth, and Yu Li retreated in time. After discovering that Gu Chengfeng's cheeks were slightly flushed, he ended this knowledge point in time.

It's still a long time.

Don't be too anxious to scare people away.

The sky outside the window was completely dark, and a warm yellow lamp illuminated the space softly.

The two shadows are next to each other, intimate.

I do not know how long it has been.

"The last knowledge point." Yu Li said.

Gu Chengfeng became a little excited when he heard this.

"What is it?"

"It's a noun. The concentration threshold of Alpha pheromone."

"The threshold is also called the critical value. The concentration threshold of Alpha pheromone refers to the concentration that can induce Omegas to advance their estrus period."

"Chengfeng, I'm here?" He suddenly asked without end.

"Come……"

what?

What Gu Chengfeng didn't say was stuck in his throat.

A burst of pheromone that was so strong as to be substantial suddenly struck.

His mind suddenly went blank.

An uncontrollable sense of trembling spread from a certain point of his body to the surroundings, and soon swept his whole body.

So, so exciting.

Gu Chengfeng has never been treated like this before, even on the night when he unexpectedly fell into heat, Yu Li was firm but gentle.

But this time the pheromone was a little rough.

There was a strange heat coming from his body, as if something was about to burst out of the ground, Gu Chengfeng had an intuition that this would not be an emotion that could be controlled, so he grabbed the palm covering his eyes impatiently.

"Yu Li... what's wrong with me?"

Yu Li looked at him deeply, covering his eyes with undisguised paranoia and desire.

But his voice was still steady, as calm as if he was standing on the podium facing the students who asked questions.

"Because my pheromone concentration is close to your threshold, you are about to go into heat."

at this time--

Gu Chengfeng's eyes were closed, he grabbed Yu Li's palm with one hand, and put the other hand on his chest, coupled with the blushing of his cheeks and the slight trembling of his body...

Appears vulnerable and helpless.

Yu Li stared at him greedily, and there was a rippling in his voice: "Do you want to continue..."

It turns out that the coldness of the snow mountain is so strong that it will become so hot...

Gu Chengfeng blushed and thought heartily.

"No, no more."

He felt that his body was about to lose control, and he shook his head in resistance.

Regret flashed across Yu Li's eyes.

But it was impossible for him to do what Gu Chengfeng didn't want to, so he let out a "hmm" and slowly withdrew the pheromone.

Gu Chengfeng leaned on the pillow and exhaled like the rest of his life after a catastrophe.

This method is quite effective, and now those knowledge points may be imprinted in his mind for a year, and he will never forget them.

Just ...

It takes a bit of physical effort.