The next morning, his alarm woke him at 6 am. With school starting at 8 am, this gave him a good hour to prepare himself and commute. He still felt a bit tired from the day before, adding to the fact that he was waking up so early and he almost went back to sleep, until he remembered his plans for the morning which made him jump out of his bed in his excitement. Leaving his room, he went to take a shower, scrubbing himself really good. He wanted to be as clean as possible and leave a good impression on the nurse. He didn't forget to brush his teeth extra well too. He chose some clean clothes to wear from his wardrobe and he was finally ready to go. The house was very silent so early in the morning, everyone else was still asleep. He left a small message saying he had gone to school earlier today, opened the front door and left quietly, skipping breakfast altogether.

When he arrived at school ten minutes later, he was still fifteen minutes earlier than the agreed time. He headed straight for the infirmary and knocked at the door, just in case she was already here, and it was opened almost immediately. The school nurse was grinning at him and invited him with a small gesture.

"Good morning, Benjamin. Come inside."

"Good morning, miss. I hope I didn't make you wait too long."

"Not at all, you are early even. I just arrived too, don't worry."

He wasn't sure if that was true considering how eager women were in this world but eventually decided to let it go. She offered him a chair and he sat down.

"Would you like something to drink, dear?"

He really just wanted to proceed with their "lesson". He had been thinking about it for a whole day and he was already very excited for what was going to happen.

"I am fine, thank you. If that is alright with you, can we the start the lesson right now?"

Seeing the expression on her face, she was very much alright with that. She sat in front of him.

"Of course. So, um, how should we start? What are you curious about?"

"Yesterday we started talking about insertion and sex. I would like to know more about that."

His supposedly innocent bluntness surprised her, in a very good way. Her grin was only growing larger and lewder by the minute. She nodded several times quickly and answered.

"Yes, that is very important. Let's see... As I told you yesterday insertion is when the woman puts the man's penis inside of her and sex is the act of the woman stimulating the man's penis until he reaches ejaculation. It is the way a woman can get impregnated by a man's sperm, which will allow her to have children. But, most of the time, sex is just used for the two partners to have fun, since it is an extremely stimulating and pleasant process. Pretty much all of the women in age of procreating use the pill, which is a very safe way to avoid pregnancy. O-of course that applies to me too."

She let out her not very subtle desire a bit at the end and was somewhat red by the end of her explanation. Even though Benjamin didn't learn anything new, he still noted that her choice of words was a bit weird, very centered around the things done by the women. He was curious about that so he directly asked her.

"This is very interesting. But, from the way you phrased this, it seems the woman is doing everything during sex? What is the man doing then?"

She let a small resigned laugh at that question.

"Most men... don't want to do anything during sex. Since the act of sex is traditionally about impregnating a woman. That means making the man ejaculate inside the woman, and it is the job of the woman to make that happen. Of course that isn't all bad for the woman, since that doesn't mean they can't get a lot of pleasure from sex, as they also get greatly stimulated during coitus."

Now that was new information for him. He could hardly hide his happiness when he heard that. Interpreting what she said, didn't that mean that active men during sex were rare? Which meant that if he did so, he would surprise the women and let them experiment something completely new. If he thought he was hot stuff before, he was now more and more convinced that it went even beyond that, like a winning lottery ticket or something. He then asked her another question.

"I see... And so concretely, how does sex work? I, um, I know you agreed to teach me but I don't want to abuse you kindness. I-if possible, could you give me a practical experience, just like what we did yesterday?"

"Yes! Oh... I mean, of course we can, we are here so you can learn it all, after all. You should not hesitate to ask me anything, right, absolutely anything!"

Her excitement was already reaching a very high level and she could barely contain herself. He wasn't in a much better state, his hard-on very much visible through his pants.

"First, you can take off your clothes and lie on this bed. I will also take my clothes off since being nude makes everything much easier."

He did as she said and started taking his clothes off. As soon as he removed his top, her eyes focused on it, her face full of desire. When he removed his pants and underwear, her line of immediately moved down, admiring his erect member for a long time. She finally took her eyes away from the scenery and finished removing her own clothes. It was now his turn to focus on her body and he noticed her pussy, which was very hairy yesterday, was now neatly trimmed. It was literally drenched, drop of juices falling to the ground. Now that they were both nude, he went to lie down the bed. She restarted her explanations, approaching him.

"It is very important for the man's penis to be erect and lubricated beforehand, in order to avoid hurting it during the insertion. This is called foreplay."

That was yet again the reverse of what he knew. He asked her.

"What about the woman, isn't she hurting during the insertion?"

"Not at all, women's vaginas are able to lubricate themselves, making any foreplay unnecessary. Contrarily to the men's erections, women get wet extremely easily and do not need any external stimulation."

She climbed on the bed, her head now at the level of his cock. She concluded.

"Shall we start now?"