Biology

"Okay, I just need to make it through this class and then I can get clothes during lunch.", Jess calmed herself. She walked through the halls, no longer caring about the other students and their phones, forgetting that they are no longer just seeing a naked pair of boobs and pussy, but boobs with very aroused nipples and a still-moist pussy. This was better than most porn and it was happening right in front of them in their school.

She walked through the door and into the biology class. Everyone gasped at the sight before them. The poor substitute teacher had no idea what to do. Today they were supposedt to start sex ed and he was supposed to teach it with a naked girl in his class? "O-o-okay class. Today we are teaching sex ed about the female anatomy", he said meekly.

"I don't know, I'm already getting a great lesson here" said the boy sitting next to Jessica.

"Uh, Miss...", the teacher says tentatively

"Jessica", she responds

"Miss Jessica. About your...attire", he states

"What about it?", she asks defiantly, detecting his meeknesss.

"Well...I...I'm not sure it's appropriate for class.", he points out.

"This is female anatomy in sex ed, right? What's more appropriate than this?", she asks while standing up and panning her hands down her naked body. Jessica would never have been this bold before today, but it's been a hell of a day.

"But I can't teach like this, you'll be a distraction.", he opines.

"Then make me the model. Use me to teach the class. I've gotta be better than some old textbook, right?", she exclaims.

Every student in class chants "Let her do it!"

"Oh okay, fine", says the teacher, unable to control the class.

With that, Jessica heads to the front of the class and awaits.

"O-o-okay, class, well, th-th-ese are called b-breasts", stammers the teacher, "these ones are quite firm as our model is still young."

Jess puffs out her chest to display her boobs better.

The teacher continues "their primary function is feeding but they are also used for creating sexual attraction in males.", his stammer disappearing now that he is talking clinically, "when the female starts to get aroused, her nipples stiffen."

Jess starts rubbing her nipples and they stand at attention.

Tye teacher continues "If we head down here we see pubic hair. It is a sign of sexual maturity and is also used in sexual attraction. Below it is the vulva which is used for reproduction", he says as he points at her naked pussy.

"Vulva? I thought that was called a vagina.", said one student

"That's a common misconception. The vulva is the external structure and the vagina is canal that heads inside", answers the teacher.

'I still don't get it", says the student, being intentionally difficult.

Jessica answers shortly, "Okay, idiot, this is the vulva", she says as she moves her hand over her pubic area, "and this", she says as she sits her ass on the front table facing the class, spreading her legs wide and pointing at her beautiful, exposed pink hole, " this is a vagina".

"These folds are called my labia", she continues, "and this little thing here is my clitoris." She steps off the table, faces away from the class, and bends forward "and here's my anus and you can still see my vagina under it. Any questions?"

This was basically a repeat of her gym class but she was the one controlling it now so it felt powerful instead of **** and humiliating this time.

The first question came up "Mr. Jameson said a minute ago that the nipples change when they are aroused, does the vagi...I mean vulva change too?"

It was now that Jessica started to have second thoughts. The last time she was reacting to other people's stimulation. Could she really go through with arousing herself on purpose this time? It was too late, she was too far in now. She couldn't lose her confidence and poise now.

"Yes, they both change", she said matter-of-factly. She started to rub her hands down the sides of her body. She sat back on top of the front and desk and started imagining the audience naked. Not to stop any nervousness which was long gone now that her hormones have taken over her brain, but to help her get more aroused. It worked. Her pussy started to puff up and open like the most beautiful flower. The moisture started to build up and turned into a torrent of juices.

"This is what arousal looks like", she says, breathing heavily. She lays down on the table "now...let's...review" she says with difficulty "I...neeeed...some... vol..un..teers. Come up...and...touch..any part...and..say...what...it's...called".

The whole class surrounded the desk. They pointed at, poked, and grabbed all of her most personal treasures. They followed instructions and said the names of the parts but Jess was too far gone to notice and respond with anything but sighs and moans. She loved the feeling of being touched all over by all of her classmates. Some cupped her boobs, some flicked her nipples, some fingered her, and a few even went straight for the gusto and put their fingers right up her soaking wet cunt. A few brave souls even snuck in a few licks where teacher couldn't see. After just a few minutes Jessica shouted as loud as she possibly could and started shaking. "Ah, aaaaaaaah, oooooooooooh yeaaaaaaah! Ohhhh Goooooooood! Oh fuuuuuck yeeeeah!" she screamed "and...that's...an org...asm..." she panted out.

"And I can't belive I just had one in public with everyone participating", she thought "Well, now I'm at rock bottom. This couldn't possibly go any further south."

The bell rang and she strode into the hallway full of students. Not caring anymore that she was completely naked. Not caring that she was still obviously wet and that her pussy was still wide open for anyone to see. Not caring about the pictures and videos being taken of her in this state. Not even caring that her hand was lightly rubbing her clit for all these students with their cameras.

She planned to go get clothes at lunch, by why bother? Some turn of events or another was going to get her naked again anyway. Fate wanted her naked and now she wanted to be naked too.