At the end of the lesson, something happens

The rest of the lesson went by with nothing special happening. You find yourself getting angry at your 'future self' for letting your so called "perfect school day" get wasted by an hour of math. What would be next? An hour of Russian Lit?

Sure, there had been some nice moments. For example Paula Elliot had spoken up during a silent exercise proclaiming: "I sucked on my fingers yesterday after masturbating anally." In another example, one guy named Martin had stood up in the middle of the class and said: "I need to masturbate, be right back." and left. No one in the room had found either incident to be even the slightest bit odd, so they were done with rather quickly.

And that was the problem really. For a "perfect school day" created by an apparently god like version of you, all that was occurring were little bizarre moments. They were certainly fun and entertaining to observe, but the majority of the time was still being spent participating in just a typical boring math class. Since you definitely did not want to get stuck in an infinite loop, you decided to just take notes on the tedious parts and change the school more to your liking once your powers were restored. With that said, you made a mental note that you would only change things for tomorrow forward so as to ensure you did not impact today's events and get dropped into a parallel universe or some shit.

Turning on your phone, you opened up the notepad app and created a "To-Do List" for yourself. Item number 1:
"Improve Math lessons"

It was about 10 Minutes before the end of the lesson when things started to get interesting again. Mr. James had been giving some really boring lecture about fractions when he looked up at the clock and noticed the time.

"Alright everyone, close your books. Your homework for the evening is to finish the exercise we've been working on, as well as to read Chapter 4.2 and complete tasks 2 a to c and 3 b. Now, if the well behaved students would please move into the back, I believe it is now time for those who misbehaved today to come forth and receive their punishments. Of course, as usual, anyone who feels the need to be punished for a fault that I may have missed can come to the front to volunteer."

Everyone rushed to the back, and you followed their lead. You definitely did not want to be mistaken as a volunteer and be tortured by Mr. James. As you made your way to the back of the room, you saw a few people stepping forward.

Nadine, Jessica and Denise slowly trotted to the front. Then you also saw Kimberly stepping forward and it confused you, until you saw what she was doing. Diana was still unconsciously laying next to the teachers desk.

"Very nice of you to join the girls, Kimberly," Mr. James spoke loudly. "So for which crime do you need to be punished?" He looked in her eyes deeply.

"I just want to take Diana into the back, so she is not in the way, sir." She whispered more than she spoke.

"Dear girl, don't you have a little respect. The poor girl is ****. How can you talk about her like a piece of meat. Being in the way... ts ts ts, please, bring her to the school doctor and then come back. I expect you in the front for disrespecting another pupil."

You thought back to your original opinion. This guy is a complete dickhead.

"Now what do we have here... let's start with the girl who only has one count of misbehavior.
Jessica Thompson. You did not do your homework today. So, normally I would just take away an inch of your skirt or open up one more button on your blouse, but since you also were late today, I think both would fit you just fine. If you disagree, please just say so, now." She glared at him, handing him her tablet. You figured that she could loose an inch from her skirt without it being too bad. Sure, now you could see the hemline already while she was standing, but the button was worse. As you already had noted before, Jessica was not wearing a bra, so opening another button of her blouse was... more revealing than it usually would have been.

Mr. James looked at her and asked sheepishly. "I am not hearing anything. Don't you have something to say? Look, I really don't want to do this, considering your current status, but you do have to thank me for properly helping to teach you good manners... you know that. Come on, Jessy, just a quick thank you." He was mocking her. With the ball-gag still in her mouth she couldn't speak, and he knew it.

"Well, so you are misbehaving again. Open up another button and sit down in the back again."

You saw her turning around, only one button, the lowest one, of her blouse still closed. Her breasts were on full display with every step she took. Ironically she did not seem to mind and even pressed them out while walking in the back.

You had to admit, her look was turning you on quite a lot. Presented for your amusement was an almost naked gagged girl, proudly presenting her tits to the class, with a choker around her neck. You had had fantasies about this look in the past, and now you were able to see it live.

"Now the next one will," the door opened and Kimberly came back in, "be the girl who just returned. I know just what to do with you. Please lift up your skirt and select a boy of your choosing. He will spank you for the rest of the class, but please refrain from moaning or making other sounds, as it would be a disturbance to my teachings."

She looked around the class and you realized that most guys were waving her over, some whispering things like "I won't be to harsh, let me do it."

You were fairly certain what was going to happen next. Unless "future you" was intending to ruin your life, you had to assume Kimberly would be headed in your direction. You did not see the reason to call out to her. And then, without any hesitation Kimberly's face met yours and a little smirk appeared. As expected, she walked straight up to you, and since this was your "perfect day" after all, bent over your desk. You stood up. This would be fun.

You lifted up your arm, taking good aim, while she lifted her skirt up. Her apple bottom was right in front of you and....

-SLAP-

You hit it with the palm of your hand as hard as you can.

-SLAP-

-SLAP-

-SLAP-

Then you realized everyone, including Mr. James, was looking at you. Maybe you had gone overboard. Was this just a formal thing and you should go soft on her? Do only teachers go hard on students?

-SLAP-

Kimberly silently groaned at that slap. Everyone in the room must have heard it and you wondered whether that would lead to an additional punishment being assigned to her or perhaps even one to you for disrupting class. This should have given you pause, but actually, it didn't. You had been told to spank her and that is exactly what you were doing. She was sticking her ass out, right in front of you. Not covering a bit, so why should you hold back?

-SLAP-

-SLAP-

-SLAP-

As you rose your hand to hit her again, you looked at Mr. James. Speaking with as much arrogance as you could summon up right now you stated: "Don't you have some better things to do than to watch me doing your job?"

-SLAP-

And he did. He turned away from your direction and began to pick out his next victim.

-SLAP-

"Yes, of course. Please, Denise, you would be next. You did not do your homework, bad enough, but then you..."

-SLAP-

"...even lied about it. Lying alone would be a more severe crime than no homework, but the combination... I fear I have to be quite severe with you..."

-SLAP-

You walked next to Kimberly, getting in a new position to spank as you bent down to her face, whispering in her ear. "If you agree to let me feel you up while I am at it, I won't have to spank you so often." You were surprised how eagerly she nodded. Was she enjoying this on some level?

Mr. James took Denise's tablet and spoke out what he was changing. "Skirt length: minus 1 inch. Dear girl, you are down to 4 inch skirts tomorrow..." a whisper went through class. She was still wearing her jacket, so everyone assumed her clothes were normal beneath it. "Now let's see... Ok, Bra: 1 size down..." She did not seem to mind this at all, just staring away in the distance. "Panties... now extra small." again no reaction. "And of course... jacket: removed" Now it hit her. Like a lightning bolt she looked at him.

-SLAP-

You let your hand rest on Kimberly's butt this time, moving it around. The fact that everyone was looking to the front now made it easier for you to grope her cheeks, pulling them apart and pinching softly into them.

Meanwhile Denise was stuttering. "S-sir. Please, I really need my jacket. Can I offer you a different punishment? I am willing to go commando instead." He seemed not convinced so she added "and braless. Please, sir. I will even go down to a 3 inch skirt if you leave my jacket." Now he seemed interested.

-SLAP-

This time your hand hit more central, so it became easier to slide your fingers alongside Kimberly's string. You could feel her pussy behind it. She willingly opened her legs a bit and you could feel her being wet. She was definitely enjoying this, at least a bit. No, scratch that, considering her pussy, she was enjoying this a lot.

Mr. James smiled into Denise face. "How about this. You go commando, you go braless, you remove your blouse and we put your skirt down to 2 inches. If that is fine with you, you can keep your jacket." Denise eagerly agreed to this, thanking him for teaching her some manners. Sure, she might have gotten away this time, but the next time, she would be caught with anything, she would have nothing except for her jacket.

-SLAP-

You instantly slip your fingers against Kimberly's pussy again. Your thumb prods her butthole and this time you just grab her string and pull it aside, revealing her everything. While doing it you realize that some people started watching you again, but you do not care. She agreed to it and she obviously is enjoying it, as everyone can see now that she is uncovered.

"Nadine Yang... you dirty dirty girl lied today to me. And not only once, but twice. I think it is fair to say, you are the most misbehaving student in this class today. So lets see what we can do with you. He took her tablet, checking on it.

-SLAP-

You must have hit a spot, because Kimberly yelped this time, even if you didn't intend it to be any harder than before. You really wanted to feel her up some more, so you decided to do so. Your index finger slid inside of her moist pussy, feeling the tightness of her hole. Considering the amount of lubricant her pussy juice provided, you were surprised how much pressure her cunt gave your finger.

"Oh la la," you heard Mr. James say from the front of the room to Nadine, "you sure have a lot of things on your to do list. Quite some duties to do. How about this. I wont undress you any further, we need to have a little decency at least, don't we? Instead, I will just do this." He typed onto her tablet and handed it back to her. "The punishment is not open to debate."

-SLAP-

This time you did your best and just slapped really soft. Your finger instantly slipped back into her hole, a second one following right after. You were filling her deeply and you could see how hard it became for her not to moan out by this treatment. While you certainly didn't want her to moan and get punished again, you did want her to cry out your name and cum on your finger. Oh the complexities of punishment administration.

"But sir... you added 240 hours to all of my duties... most of them would have run out today... You can't be serious?" Nadine was struggling to not scream at the teacher who just made the next few days really hard for her. Mr. James retorted: "I can even put on more, if you don't thank me and go back to your seat now, girl!" With a grumping "Thank you" she obeyed.

-SLAP-

It was nothing more than a soft stroke now. You went at it with a good speed, and then, with a smile you pulled out your fingers. Kimberly expected the next soft slap for sure, so you surprised her by pressing them in directly again. A quiet moan escaped her still closed lips. Almost you think and pull them out again, to retry the trick. Then you smile. Twice the same wouldn't work, so you move your fingers and instead use the juice she had left on them --- and there was a lots of it --- to push your index finger right down into her puckered asshole. There it was.
"Ahhh, stop, don't go there please..." she whispered. For you this was a win.

"What is this indecency?" Mr. James spoke up, looking at you and Kimberly. "Haven't I told you to remain silent, young lady?" You were just about to feel bad as he continued. "As a punishment for your misbehavior, I believe you will need to suffer some more at Mister Doe's hand. At our next full class you will lay on his table like you are now. You are going to let him treat your backside like he seems fit to teach you some decency.

Wow, this IS a good punishment. And it also increases the fun of my next Math lesson. Future me, you DO take care of my to do list. Thank you. Or rather, thank me!

You keep thinking to yourself without realizing you still have your finger in her asshole. Kimberly brought this fact to your attention by asking: "Eehm... Mister Doe... I am terribly sorry to ask but... could you take your finger out of me."

An idea pops into your mind and you reply. "Not yet, I feel like having them in there for a while. Except if you want to suck them clean, I guess that could motivate me to take them out." She laid there for a second. The bell rang and the people stood up. Mr. James just left the class without a second look. You however kept your place. It was just you and Kimberly.

"I am sure I will be forgiven for being late in our next class. How about you?" You tease her, moving around your finger in her butt slightly.

"Okay, okay, I will suck them." She blurted out.

"Haha, too easy. I don't know... I guess you have to beg me for it."

"WHAT? Are you crazy, there is no way I would HEY, STOP THAT!" You had entered her ass with a second finger.
"Fine, you win. Please Mister Doe..."

You intervene: "Call me James."

"Yes, please, James, please let me suck on your finger as soon as you take it out of me. I really need to suck them clean to feel good. I am such a slut for this." The day was finally starting to turn more toward your tastes.

"Well if you insist on it." You pulled them out and held them right in front of her lips "Tell me if you can taste your asshole on them." She had opened her mouth but now she backed off. You were not able to stand for that however and you pushed your fingers into her half open mouth.

A few seconds later after her tongue played with your fingers, or rather you rubbed them on her tongue, you pulled them out again. "Great, now, what is our next class again? I seem to have forgotten the schedule."