Unintentionally

"Take...Take off?" Xuan Zifang was stunned, his face flushed with embarrassment.

Su Ji said solemnly: "Yes, take off naked."

So under the gaze of Su Ji's extremely serious eyes without any other emotions, Xuan Zifang tremblingly began to take off his clothes.

Top, socks, pants, and then...

Xuan Zifang looked back at Su Ji: "Uncle..."

"Continue." Su Ji said without any emotion.

So the panties were taken off.

"Well...and then?" Xuan Zifang was naked, standing on the spot cautiously.There was also a full-length mirror on the opposite wall, which directly reflected Xuan Zifang's embarrassed face, and Xuan Zifang didn't dare to look at it.

Su Ji looked up and down, his eyes became slightly deeper, and he stood up: "Come here."

"Oh……"

Xuan Zifang walked up to Su Ji step by step, with his head down, even his neck was pink.

"Stand here." Su Ji pointed to the instrument in front of him.

"What is this?" Xuan Zifang watched Su Ji start the instrument skillfully, and some unclear values ​​began to appear on the screen, and he stood up carefully: "Is this... okay?"

"Stand a little further to the left, legs apart, and step onto the marked spot."

Su Ji saw that Xuan Zifang didn't know whether he was too nervous, or he was thinking wildly and clumsily, so he couldn't help smiling. He went to help him by the shoulders, and motioned him to relax: "That's all right...you don't need to hold your chest up and draw your stomach in." Just breathe normally."

"Can I talk..."

"Of course." Su Ji said.

"Uncle... what the hell is this?" Xuan Zifang asked.

"Measuring instrument." Su Ji explained: "Detect the ratio of muscle to fat in your body, physical fitness, nutrition ratio, and some other values. I will tell you when I get a detailed report later."

"Oh." Xuan Zifang finally felt relieved, and began to observe the instrument curiously.

The place where he stood was like a platform, with a layer of metal underneath, the screen of the instrument was directly in front, and the values ​​on it were constantly beating, each value had a color, and he couldn’t figure out which value represented What content.The full-length mirror is right next to the instrument, and Xuan Zifang can see himself standing naked on the measuring platform as long as he turns his head sideways, while Su Ji...is looking at him behind him.

Xuan Zifang's heartbeat suddenly accelerated, he took a few quick breaths, and said anxiously: "I...I'm very nervous now, and my heartbeat will speed up, is it okay?"

Su Ji smiled: "It's okay." Looking at Xuan Zifang's face as red as a tomato, he teased, "Are you really that nervous?"

"That's right...it's my first time...like this..." Xuan Zifang almost lost his voice after speaking.

It was really the first time for him to stand naked in front of someone, even though this other person didn't care much about him.

Su Ji stopped talking, and Xuan Zifang was also speechless because of embarrassment, and the two remained silent.

Until Su Ji said a word, Xuan Zifang was amnesty: "It's ok, come down."

"Okay... yes." Xuan Zifang quickly came down from the measuring platform, and was about to pick up his clothes, but was blocked by Su Ji.

He raised his head and met Su Ji's half-smiling eyes.

"You seem to have forgotten something." Su Ji said.

Xuan Zifang blinked inexplicably: "What did I forget?"

"The mark on your body has faded..." Su Ji said slowly: "I just want to mark you again by the way, don't wear clothes, and lie on the sofa."

Xuan Zifang finally returned to normal, his face turned red again: "Are... are you here?"

"This is my private lounge, no one will come here." Su Ji smiled, got up and picked up the printed measurement report, glanced at it, casually put it on the table, and went back to the sofa to sit down.

Xuan Zifang didn't dare to really lie down, so he sat on the sofa, hugged his knees, and blocked the shameful place with his thighs.The boy's back formed a beautiful arc, neither thin nor fat, with well-proportioned muscles, fair complexion, healthy and energetic, which was rare among Omega, as beautiful as a cub.

Su Ji sighed and rubbed Xuan Zifang's head: "Are you very resistant to marking?"

Xuan Zifang raised his head and said, "No...no."

"Or...resisting me?" Su Ji said with deep eyes.

"No conflict..." Xuan Zifang said.

He was just not used to this way of getting along, and when Su Ji was close, he could smell Su Ji's breath in his breath, which sometimes gave Xuan Zifang a strange and wonderful feeling.Of course, it would be impossible for him to tell Su Ji these words even if he was killed.

Su Jidao: "I don't know if you are so reserved in front of me, or in front of others... Zifang, do you know that the deeper the relationship, the longer the mark will stay."

Saying that, Su Ji took a deep look at Xuan Zifang, his eyes seemed to be hurt.

When Xuan Zifang saw this look, his heart suddenly became agitated.

It's only been a week or so since the time Su Ji marked himself last time...According to the uncle, the last mark can last for about half a month, but now it is several days behind the expected time...

Is it true that as the uncle said, in fact, he doesn't have too much affection for the uncle, which leads to the shortening of the marking time?

"I..." Xuan Zifang opened his mouth to explain, but he couldn't continue when the words came to his lips.

In the end, he could only blushed and looked at Su Ji dully.

Su Ji smiled, and patted Xuan Zifang's shoulder: "If you don't want to, just kiss and forget it. You can put on your clothes."

"No..." Xuan Zifang said anxiously, "I thought about it."

Su Ji turned around and looked at him.

Xuan Zifang blushed and said: "I want uncle to give me... mark, like last time... I don't reject that, but when I heard uncle say that, I was a little..." Xuan Zifang thought for a while , Said: "Sad."

"Appropriately showing weakness will soften your heart." Su Ji raised his eyebrows, touched Xuan Zifang's lips, and instantly broke up: "Your character is not suitable for the battlefield."

"What...?" Xuan Zifang didn't hear the sentence before him at all, because of Su Ji's touch, his body became hot uncontrollably.

Su Ji separated Xuan Zifang's legs, inserted his body between his two legs, held the fragile part of Xuan Zifang's front end and stroked up and down, lowered his head and kissed the boy's side face.

"Hmm..." The familiar feeling gradually came up, Xuan Zifang panted slightly, grasped the belt around Su Ji's waist with trembling hands, and unbuttoned it clumsily.

With the first time, the second time became much smoother.

Xuan Zifang pulled Su Ji's underwear to his thigh, held the hard and hot thing, thought for a while, and opened his mouth to hold the tip.

Su Ji's breath stagnates: "What are you...doing?"

Xuan Zifang spat out the thing, raised his head, blinked his eyes and said: "It's all said on the Internet... Alpha's marker hormone comes out from here, and the effect of swallowing Omega is better than directly marking it on the skin, although it is still not permanent. The effect of sex is good..."

Su Ji: "..."

Before Su Ji could stop Xuan Zifang, Xuan Zifang, who was very research spirit, opened his mouth and swallowed his one again, gently licked the tip of his tongue, and swallowed the glandular fluid secreted from the top.

"Enough...enough." Panting, Su Ji pressed Xuan Zifang's head and said suppressedly.

Xuan Zifang hummed, let go, and lay down obediently, letting Su Ji control his body.

After about ten minutes, the two ejaculated together. Su Ji pressed on Xuan Zifang's body, stroked his hair and said, "From now on, just look at the things on the Internet, don't really find someone to practice... ..."

Xuan Zifang said innocently: "Oh..."

"However, you can use me as an experiment." Su Ji said slowly: "Who made me the Alpha who marked you now?"

After resting for a while, Xuan Zifang got dressed and listened to Su Ji analyze the body measurement results.

"It's better than I imagined. You have developed very well." Su Ji smiled and said: "It seems that the daily training in school is still helpful to you."

"When my father was at home, he would let me do various exercises, so my shooting and fighting results were good. But I don't like running very much, and my endurance leg strength is relatively weak." Xuan Zifang said.

"Indeed." Su Ji compared the report paper in his hand and said with a smile, "You know it very well."

Xuan Zifang said: "That's what my father said. He said that he can tell what's wrong with me just by looking at him... His eyes are always very vicious."

"It's normal." Su Ji said: "My father is the same."

"Then, this physical examination of mine..." Xuan Zifang looked at the paper in Su Ji's hand, wanting to see what was written on it, but Su Ji put it away before he saw it.

"You don't need to read it, anyway, the value will change after a period of time." Su Ji said.

"I……"

But Xuan Zifang was still very curious, and looked at Su Ji pitifully.

Su Ji rubbed his hair: "Then let's discuss some deeper topics."

"for example?"

"For example... how do you think your physical strength is?" Su Ji looked at him and said.

Xuan Zifang thought for a while and said, "It's okay to run 3000 meters, but it will be very difficult to run 5000 meters..."

Su Ji shook his head: "You think too low of yourself."

"Ok?"

"You haven't experienced a real estrus yet, have you?" Su Ji asked.

The so-called true estrus does not refer to the first production of hormones that distinguish ABO attributes during puberty, but refers to the intercourse that requires the cooperation of two people to complete.For Omega, it refers to the estrus that is permanently marked by Alpha.

So Xuan Zifang nodded: "Well..."

"You know that when Omega is in heat, it will secrete a hormone that can give you the physical strength to make love for several days, and it doesn't even matter if you don't eat or drink?" Su Ji said.

"Hmm." Xuan Zifang blushed.

"Hormones can only stimulate the potential of the human body." Su Ji stared into Xuan Zifang's eyes and said, "So to a certain extent, Omega's physical fitness is actually better than Beta's."