…Ninja Academy, Konohagakure no Sato
It was the last day of class and Naruto held a blushing Hyuga Hinata in his lap. Her back was to him and her legs were spread. From their position at the back of the tiered class room, anyone who turned around would see her tiny, black and orange panties under the short dark skirt she was wearing. They would also see Naruto's fingers rubbing her thigh and creeping toward her barely covered center.
Hinata's hands covered her face as her entire body was covered in a blush, but no one could deny how aroused she was. Her braless chest was only covered by a tight shirt and despite the fact that the shirt was lined with chainmail, her hard nipples were still very obvious on her heaving, large E cup breasts. For those sitting close enough to the couple, a light scent of her arousal could also be detected in the air around her. Hyuga Hinata had merged her sexuality, her shyness and her shame completely.
Next to the couple, sat Haruna Sakura. Currently she was looking away from the couple with what appeared to be a scowl on her face. If anyone looked closer they would notice that a small but definite smirk tugged at her lips as well. If they looked even closer they would see that her small B cup breasts were also topped with hard aroused nipples and that her hips were making very small motions in an attempt to stimulate her own desperate core.
It was no secret in the class that Sakura was a monster. She was loud and would react to any slight with violence. That was until Naruto tamed her. She would still rebel against him and the school and village had been witnessed to brutal fights between the two that always ended with her docile at his feet. She shifted in her seat and her smirk shifted to a smile for a moment as she felt the burn of her bruised ass where Naruto had spanked her viciously that morning. She was also enduring the pain of a clamp on her clit that was both causing her massive pain and soaking the absorbent panties she had been allowed to wear.
Despite the treatment of the two girls in the class, something else was known. The two girls were by far the deadliest two students in the whole class. Moreso than even the more skilled Uzumaki Naruto. Even the clans feared them and the Hyuga clan especially was terrified of the clan heir they had once treated so poorly. They knew she would have her revenge and waiting for the proverbial shoe to drop had actually caused the death of one of the clan elders from a fear induced heart attack.
The cause. One month where nothing happened and the entire world changed.
...Beginning of the Academy Year.
Yuhi Kurenai was a Chunin instructor at the academy. She taught one class and only to students in their last year. That class was seduction. Most people either did not remember or chose not to comment, but when the village was founded, seduction class was a very important class for both male and female future ninja. It of course taught about sex and how to use sexuality as a weapon.
Many a future ninja even lost their virginity in the class, but the class also taught psychology. First was self-control so that seduction techniques would not work on them, then came being able to read underneath the underneath of the people they interacted with. Was the client acting the dominant while truly being a submissive? Acting strong, when truly being insecure? These skills were what the seduction class was meant for.
Then came Utatane Koharu. She did not lose her virginity in the seduction class, nor did she lose her virginity to her first love, Sarutobi Hiruzen. The story of the many sexual and relationship disappointments in her life would make for a very sad book, but the true tragedy was that it made her a bitter woman who focused her bitterness on the seduction class. That bitterness became shrouded in a hatred for perversion and perverts and then, as a Chunin, she was allowed to teach the class.
What followed was generation after generation of shinobi from the Koharu school of seduction. It taught that all perverts were horrid and that sexual attraction should not exist until after a marriage approved by one's family. Yuhi Kurenai was the teachings greatest disciple. Despite all evidence to the contrary, as proven by her own best friend Mitarashi Anko, Kurenai was convinced that pervert-ness was a unique and ingrained flaw of all men and that none could be trusted not to rape at the earliest and first chance.
She remained a virgin but her teaching, or lack their off, led many of her female students to being unprepared for the dangerous life they entered and themselves raped. Instead of encouraging her to change her teaching, it only verified in her own mind that her distrust of men was right.
Then she was made a Jōnin.
If she had been made a Jonin one month later, it would have been too late for her to be made a Jonin instructor to a genin team. She would have spent the year as an instructor at the Academy for the greatest accumulation of clan heirs ever found in one graduating class, plus the jinchūriki of the most powerful of the tailed beasts.
That class would include a young heiress that the instructor had taken a personal interest in and she would have been even more conservative in her teaching, not even wanting to expose the supposed future kunoichi to even a discussion about sex as she could not see her as anything but a princess to be protected from all the worlds evils.
Fortunately for all involved she was promoted in time to get herself a genin team. That team would fail her genin test but by that time, a new seduction teacher would be assigned and Yuhi Kurenai would be forced to go back to taking missions. She would eventually face the consequences of her beliefs, but that is a future story.
The person who was chosen to be the new seduction instructor was a Tokubetsu Jonin named Mitarashi Anko. Anko was definitely not from the Koharu school. In fact, she was taught about sex by one of the legendary Sannin, the Densetsu no Sannin. Orochimaru. Despite turning out to be one of the villages greatest traitors, he was, like his teammate Jiraiya, a super pervert. But he was also a snake and nothing describes a true seduction expert better than "a perverted snake", Ero Hebi.