2. Biology
Physical education was not the only subject Levi taught at MariaHigh School. Eren had to attend biology classes held by Levi, too. They had biology two times a week and PE once a week. This made three days Eren could see Levi, which made the boy considerable happy. After their kiss on the sports ground Levi behaved as if nothing happened. He ignored Eren and only talked to him when it was absolutely necessary. This bothered the boy, because he couldn't forget the kiss and the pleasurable feelings it caused. Hell, he didn't want to ignore their intimate encounter. He wanted more.
It was safe to say, that Eren's infatuation became even worse after the incident. He couldn't fall asleep without having wet dreams featuring his teacher. In his mind, he had kissed all parts of Levi's body and sucked him up. In his best dreams they even fucked. When Eren awakened from one of these dreams in the morning, he would notice the wet spots caused by nocturnal emission.
In classes held by Levi, Eren couldn't follow the lesson. His mind was occupied by imagining all the things he would like to do with Levi. Eren knew that a relationship of a student and a teacher was forbidden and that his feelings would lead nowhere, but he couldn't help it. The longing and lust were inside Eren, and he was not able to suppress them.
"Is my lesson that boring, Eren?"
It was in the middle of today's biology class and Eren had spaced out. Now, Levi was standing in front of Eren's desk carrying his usual annoyed expression.
"Of course not. I paid attention!" Eren stuttered with a blushing face.
"Is that so? I'm sure you can explain the phases of mitosis to your class mates, then."
"Ehm…" Eren had no idea. Mito-what? He never heard of something like that. Eren was sure, that they were talking about the structure of cells a moment ago! Turning around to Armin for help he could see that his best friend was trying to form words, but Eren had no clue what Armin was saying.
"I'm waiting." Now Levi was really angry. The teacher didn't allow inattention in his class. This sure would have consequences.
"I don't know. I'm sorry." Eren muttered bleakly.
"Armin, you were eager to help Eren. Repeat the phases of mitosis. Maybe this dumbass pays attention now."
"Sure. It's interphase, prophase, metaphase, anaphase and telophase." Armin replied immediately.
"Right. Eren, I'm sure you have to catch up on the subject matter. Therefore, you stay here after this lesson."
Eren only nodded gloomy. He didn't like to be kept in after school, but the chance of being alone with Levi raised his mood.
Eren tried to focus on the rest of the lesson, but that was nearly impossible. Levi was talking about chromosomes and division of cells using words, Eren had never heard of. The teen didn't understand a thing. Why had it to be that complicated? Later, he should ask Armin for tutoring.
When the school bell rang, all students packed their stuff and left the room quickly. Only Eren stayed at his place. He waited for instructions from Levi, but his teacher said nothing and just sat on his chair and read the newspaper. Eren choose that it would be the best to read the chapter about mitosis again in his text book, but even after three attempts Eren didn't understand a word. That's pointless, Eren thought, while sighingly closing his book.
"Do you have a question, Eren?" Levi asked while looking up from his reading.
Eren stood up from his chair, grabbed his biology book and headed towards Levi's desk. Eren was not going to about to ask something about genetics. His plan was using their alone time to accomplish his plan. The boy had spent countless class hours planning on how to seduce Levi. Now, he would proceed to attack.
"I don't understand how that works." Eren stated innocently while opening his book on a page showing male genitals.
Levi stared at the page showing an illustration of a penis and then at Eren, a confused look on his face. Then, he licked over his lips and another moment of silence passed.
"Are you sure?" Levi asked with a serious expression.
"Yes. I want you to teach me."
"I know why you don't understand. The pictures in these books aren't very accurate. I believe the teaching success is greater if you learn on living material. So, we take yours as visual aid."
Eren didn't waste a second. With lightning speed he removed his trousers and pants, feeling cool air around his bare flesh. Levi still sat on his chair and ordered Eren to stand right in front of him.
"As you may know, the human penis is an external male sexual organ. It is used for reproduction and serves additionally as urinal duct." Levi was lecturing with his normal teaching voice.
"Eren, can you name the main parts of human genitals?"
"No, Sir. Please tell me."
The next thing Eren felt was Levi's hand on his balls, lightly massaging them.
"Watch it! These balls are called testicles and they produce your sperm."
Levi's hand wandered ahead to the base of Eren's member. He fiercely enclosed the organ with his hand to apply pressure.
"This part is called root, followed by the shaft."
This said, Levi let his hand stroke along the length, which was accompanied by an almost inaudible moan from Eren. The boy felt his blood rushing into his lower region and he felt that his member began to bob up. Levi's fingers started to rub circles on the top of Eren's penis.
"Here, on top, you can see the glans and this slotted opening is called meatus. Do you have any questions, Eren?" Levi asked calmly, as if this situation was the most normal.
"Why does my body behave strange? A few minutes ago my cock was all limb and hanging down. Now, look at it! It's swollen, larger and stands up!" Eren explained with an innocent, almost childish expression.
Levi narrowed his face to Eren's lower region as if inspecting a rare event. Eren's member was fully erected, now. The boy could see the bulge in Levi's pants, indicating that his teacher was aroused, too. The teens plan to seduce Levi using a role play seemed to be successful!
"That's an erection and it's caused by sexual arousal. Are you aroused at the moment?"
"Yes, but I don't know how to release the pressure building up within me."
"I'll show you. The first possibility is manual stimulation."
That said, Levi started to stroke gently over Eren's erection. He massaged the length with both hands. Then he played with Eren's balls, eliciting lustful moans from the teen. Levi saw a clear fluid leaking from the tip and smeared it over his glans using circular movements.
"That fluid is called pre-ejaculate or pre-cum. You seem to be very aroused, already. Another way to cause pleasure is through oral stimulation."
Eren gasped in surprise. Oral stimulation? Was Levi about to give him a blow job? He saw Levi get up from his chair and then kneel in front of Eren. This moment was better than every fantasy Eren ever had. The boy felt the slick, wet tongue lick along his shaft, which caused goose bumps all above his body. Next, Levi let his tongue twirl above Eren's tip, licking up the pre-cum, Eren was leaking. Eren grabbed strands Levi's silky, raven hair and pulled him closer. Now, Levi swallowed Eren's length and sucked it dedicated, making Eren whole body shake.
Eren almost lost his senses. His lustfulness was on top and he felt that he was going to cum soon. Levi must have felt that Eren was close to his climax, too. That's why he stopped sucking Eren of.
"Levi, don't stop!" Eren moaned needy.
Levi didn't answer but grabbed Eren's shaft again, pumping it hard. It needed only a few thrusts and Eren ejaculated all over the class room floor.
"And finally, this white fluid is your sperm." Levi said with a smirk.
Still gasping Eren wanted to grab Levi's trousers to make him feel good, too. But Levi pushed Eren's hand away.
"You might have the chance to show me what you learned in our next lesson." Levi said with a meaningful grin and left the room, leaving a half-naked and heavily panting Eren behind.
That was the second chapter! Things getting more smutty :) I even read the wikipedia articles about male genitals *hahaha*
omg, what am I doing with my life?
I hope to see you in the next chapter, too.
Love, Hanny
