Next class is art class, which Midnight taught anyway. What hijinks could happen there?

"Alright, class!" Midnight's joyous tone greeted them upon everyone returning to the classroom. "I hope you still have some energy left after the sweat you worked up! I've prepared a special lesson for you all today!"

Izuku took one look at the smile on her face, internally sighing. Nemuri's got that look on her face when she wants to embarrass people. I think I can see a bit of drool on her lips, too...

"What lesson is that, Ms. Kayama?" Mina Ashido raised her hand as she spoke, leaning forward with her head in her other hand. "And does it have to do with why you're in your hero costume?"

"Well, I won't lie, it's a bit of an advanced one." Nemuri chuckled darkly, bringing chills to everyone in the room. "Normally, we wait until after the summer break of your second year to offer teaching it to students, but!" With a crack of her whip she sat on her desk, leaning forward with her breasts pressed out as she crossed her legs in a slow, deliberate motion. Her lips were quirked in the perfect position to be sultry and seductive as she spoke. "After the events of the USJ, Principal Nezu has seen fit to allow me to work my charms on all of you~" She licked her lips. "Now, a quick question for all of you. What is one of the biggest downfalls of rookie heroes? The first one to guess correctly gets to have a treat." Her eyes wandered around the room, watching as chaos erupted in most of the boys at her words.

Answers were being flung at random, mostly from Mineta and Kaminari, though not even Kirishima and Shoji were quiet. The only quiet males in the room were Tenya who was thinking it over calmly, Koji who had put his head down with a large blush, Tokoyami who scoffed with his arms crossed, Shoto who was silent as usual, and Izuku who knew the answer. It was a lesson that had been hammered into his head by all of His Girls in his time with them. He'd keep quiet unless no one could get the answer soon.

As the seconds ticked by, Midnight listening to the random answers that grew more and more ridiculous as she was silent, smiling all the while.

The girls looked a little more conflicted. Should they answer? What was the reward? Should they risk potentially being at Midnight's not-so-tender mercies?

As the noise quieted down, all possible answers exhausted, Nemuri let her smile turn into a sadistic grin with promises of sweet pain. "Oh, so nobody can answer? Or do they just not want to answer? I'm honestly surprised no one's said it, it's very obvious after all. Do I need to give you all some very special lessons after school?" She asked, cracking her whip again.

Izuku shook his head, putting his hand up. "Uh, Ms. Kayama?"

"Yes, Midoriya? You think you have the answer?" Nemuri turned her attention to him, her gaze intensifying.

"It's seduction techniques or using the opponents embarrassment to defeat them." Izuku started. "Villains often use sex appeal to make heroes drop their guards, whether it be because they're thinking with their libido or they're too embarrassed to defend themselves, and then they can either attack them with impunity or flee easily. Every week, another rookie hero somewhere in japan is either shamed out of a job, crippled or killed due to sex appeal. And it's not just limited to Female Villains and Male Heroes either."

"Correct!" Midnight cheered, smiling as she pointed at him. "And such an indepth answer deserves a special reward~" She sing-songed, beckoning him forward with a single finger.

It was easy to hear the grinding of Mineta's teeth as Izuku stood up and moved to the front of the class, all eyes on him. He stood idle, sweating as Nemuri sashayed up to him and grabbed his face in her hands.

Oh no, you're really planning on-

All his thoughts were driven away as Nemuri gave him a full on kiss, leaning him back as she stepped forward and forcing her tongue into his mouth.

The room was silent for the briefest moments, the act so shocking to everyone that they found themselves frozen, only the steady beating of their hearts able to show that they were alive. They themselves thought they had died of shock or, in a few cases, envious rage.

Just as someone was about to say something, Nemuri pulled herself back, leaving Izuku bent over the desk, playing at needing to regain his breath.

Nemuri, what were you thinking!? Izuku was slightly panicked, hoping she had a plan to play it off. He really REALLY did not want people knowing about his secondary job, but if he had to pull out that card to keep Nemuri out of trouble he would do it in a heart beat... even if he did have to go into hiding.

"And just like that..." The seductive heroine teacher started to say like nothing happened. "Stab stab stab, you're dead." Nemuri stuck some bladeless knife handles on Izuku's chest. "Or, if I didn't want **** on my rap sheet, I could easily go for the crotch shot, or break your knee's or any other number of things."

A pencil rolled off a table in the following silence as the R-rated heroine turned around, sitting on Izuku's chest after flicking off the handles.

"Uh, Ms. Kayama?" Izuku breathed out in the silence, bringing his hand up. "Can I get up now?"

"No." The heroine replied, patting Izuku's leg fairly close to his crotch. "For being such a smart boy, you get to stay there until I say otherwise. Or until what I'm trying to teach you students sinks in to your classmates. Aren't you just a lucky little boy! Now stay quiet and play dead, or you'll wake up tied up for the next lesson."

That... Knowing you like I do, that kinda makes me want to defy you... Izuku fought down a boner that was forming, the very thin material of Midnight's costume doing little to keep the curve of her body hidden from his eyes or her intoxicating scent from tickling his nose. Of all the times to be almost immune to her quirk!

"Ms. Kayama!" It was Iida who found his voice first, but even he seemed to be frazzled by the show they had just gotten. "You! The! Unacce-!" He was tripping over his words, his arms moving so quickly and sporadically he looked almost like he was having a seizure.

"No, actually. It's perfectly acceptable!" Nemuri smugly pointed out. "It's within the bounds of the lesson, and that is..." She pulled out a card that had been hidden in her more durable leotard, holding it out to the class after she unfolded it. "Use of sex appeal in heroics and villainy! How to use it, and how to defend against it!" She gave a thumbs up at the class. "And as you just saw, if I were a villain I probably could have either escaped from all of you just now, while killing Midoriya if I so chose, or at least removing him from hero work forever. Recovery girl can't regrow limbs, you know. Or I could have taken him hostage... Though, I suppose that's still on the table!" She once again pat Izuku's leg, looking back and blowing him a kiss. "I bet you're the type of boy that would enjoy some special lessons with teacher, aren't you?" She asked hotly.

"Midoriya!" Mineta began yelling as massive tears rolled down his face. "How could you!"

"Quiet down!" Nemuri barked, cracking her whip as loud as possible while glaring daggers at the purple haired midget. "Just because this is a classroom does not mean the situation is not serious!" She settled down further onto Izuku's chest, leaning back as she put her arms to either side. "We are not teaching you this lightly, or for the fun of it."

"Like I said earlier, this is something we wait until after the summer break of your second year to even begin teaching. But, because of the events of the USJ, you all will be targeted by villains. More so than if you were just a student here at this school." Midnight once again looked around the room, though her eyes had no hint of seduction in them. They were as hard as steel and cold as iron. "They may try to use ****, which you have already been learning from your heroics class how to deal with. But they may also try more subtle approaches, or surprise tactics. Sex Appeal is one of those tactics, one that most of you probably will never develop good defenses against. Even above sneak attacks and poisoning, Seduction and Sex Appeal are the methods villains will often use to subtly attack heroes. Seduction, the act of being who they are not to wriggle their way into your life in order to attack you in any number of ways is the more subtle of the two. Sex Appeal, on the other hand, is something that can be used in battle to throw an opponent off their step, as you saw me do to Midoriya here."

"Unfortunately." Kasumi snorted, looking mostly unperturbed by what she had seen.

"Which is why Principal Nezu has allowed me to begin training you all in defending yourselves against Seduction and Sex Appeal." Nemuri continued on as if the girl hadn't spoken. "To better defend yourselves from villains who will see the fact that you survived the attack physically unscathed as a challenge. Now, as I said, most of you won't make much headway in this class. It's inevitable, but some people just aren't able to put aside their basic urges... Unlike Midoriya here, who has not sported an erection this entire time!" Midnight pointed at his crotch. "I'm surprised, in a situation like this most young men would be losing their minds with desire!"

"Uh, Ms.?" Toru asked, raising her hand. "Is he even awake anymore?"

"Oh, he is." Midnight grinned. "I'm really impressed, honestly. Normally any man this close to me even with my suit on would at least be half asleep. But Midoriya's really holding in there, what a trooper~" She licked her lips once more. "Alright, Midoriya. You can get up now. Go back to your seat."

Nemuri stood up, letting Izuku sit up and let out a breath. "Oh, so you were holding your breath that entire time? Wow, that's a lot of lung capacity." She said, making it look like it was the first time she'd ever seen him hold his breath that long. "I might actually have to take you home with me, see what you can do in a more private setting~"

Izuku said nothing, slinking off to his seat while making it seem like his legs had gone to sleep.

"Now!" Nemuri cracked her whip again as Izuku was trudging back to his seat. "Enough playtime! The best defense against sex appeal and seduction are being comfortable in embarrassing situations, namely around the opposite sex! However, since there's an inordinate amount of male students, some of you will just have to act like it's a locker room. I'll be pairing you up, and you'll head to the second floor where we have private rooms for teaching this kind of thing."

"You and your partner will take turns getting undressed to a level the person is most comfortable with. While you're free to do whatever you both feel comfortable with in the rooms, there is to be no **** from either party, am I understood? There are panic buttons installed in several spots in each room, in case someone does something they really shouldn't. I hope I don't have to make it clear what happens if one of those panic buttons goes off intentionally." The glare she gave every student was enough to make the blood of everyone freeze in their veins. "Now, stay seated while I pair you up and send you off."