After an unfortunate misunderstanding, (Y/n), a human teenager who just so happened to be classmates with Jack, got kidnapped by a Vehicon who mistook her for one of the Autobots’ human friends. Megatron was displeased with the mistake and he considered killing (Y/n), but he figured that he might as well see why his enemies liked having humans around so much. He obviously couldn't just let (Y/n) go because he didn't want word getting out about his kind's presence on Earth, so he had the Vehicons modify a room for her to live in with everything she would need in order to survive. At first (Y/n) was scared that she was going to get stepped on like a bug, but when she realized that they were going to keep her she just kind of accepted her fate. Almost a month had passed since her surprise adoption and (Y/n) knew that a certain monthly bodily function would be starting, although she was worried because she didn't have any of the supplies she needed aside from her favorite snack and painkillers.

When (Y/n) woke up one morning in particular it was an awful day for her; she had gotten her period and its sudden appearance made her panic a little. She looked everywhere in her house, which was just a bunch of rooms made by the Vehicons in the closet in a spare berthroom that Megatron had given her, but she couldn't find one single pad/tampon anywhere, so she used a wad of toilet paper as a makeshift pad until she could get her hands on some real period products. Oddly enough there was a bottle of painkillers in her bathroom, most likely supplied by Knockout who had been learning about basic human medical needs. Shortly after (Y/n) exited her bathroom she heard a knock on her door and went straight to the intercom system so that she could give her visitor permission to enter; she was met with the fabulous sight of Knockout, aka the ship's doctor who cared way too much about his finish.

"Good morning, (Y/n)." Knockout greeted the human teen as he walked into her room; since it was the weekend she didn't have to go to school, so he wanted to take her on a drive later so that she wouldn't get cabin fever, unfortunately he wasn't prepared for her response.

"It is NOT a good morning!" (Y/n) muttered angrily; she was still in pain because the medication hadn't fully kicked in and she only wore a toilet paper pad, and because of her hormones she felt angrier than usual.

"Oh, and why is that?" Knockout inquired curiously, not missing the angry tone of her voice.

"Because I got my fucking period and I don't have any pads/tampons!" (Y/n) practically yelled in anger, glaring at the cherry red mech.

"What's a period? And what are pads/tampons?" Knockout questioned with uncertainty, suddenly feeling highly uncomfortable because he hadn't quite done as much research on human girls as he should have, and he didn't know about periods.

"I'll teach you, along with Megatron, Starscream, Soundwave, Breakdown, Dreadwing, Shockwave, Predaking and Steve." (Y/n) answered as she smirked evilly as she decided to educate her social circle about what human teen girls and women had to go through every month.

Knockout wasn't entirely sure what (Y/n) had planned, but he commed all of the Cons that she mentioned and they all came to her berthroom. Thankfully, none of them were busy at the time which would give (Y/n) the chance to teach them a lesson they would never forget. The sight of Megatron had always and would always be intimidating and for a moment (Y/n) wondered if she'd made a mistake by inviting him, although she refused to show any fear. She realized just how crowded the small berthroom was with all the mechs she invited, luckily there was a way for them to all fit better even though the main part of the room would still be full.

"You all better activate your holoforms because I'm going to teach you something important!" (Y/n) said loudly enough for everyone to hear before she grabbed her tablet off of her dresser before she went to go sit on her bed.

"Why should we listen to you?" Starscream asked whilst sneering at her, once again being his usual snarky self.

"Because if you don't, I'll rip your spike off and shove it down your throat!" (Y/n) threatened with a firm tone, one that actually visibly frightened him.

Starscream didn't want to make (Y/n) any angrier, so he did as she said. (Y/n) watched as Megatron, Starscream, Soundwave, Knockout, Breakdown, Dreadwing, Shockwave, Predaking and Steve all activated their holoforms, which all appeared in her bedroom. She quickly turned her tablet on, got onto the internet and found a video that explained the female reproductive system in great detail. It was understandable why the Decepticons didn't know that the female half of all humanity bled and dealt with other symptoms every month, and that's why she took it upon herself to educate them.

"Here, watch this." (Y/n) said as she turned her tablet towards them prior to pushing the play button on the screen.

At first the Cons were skeptical of the video and thought that watching it was a waste of time, although at the same time they were a little curious about it. The video started out by briefly explaining about women's bodies and how they changed during puberty, then it started explaining in great detail how teen girls and women bleed every month, where they bleed from and experienced a lot of other highly unpleasant symptoms. About half-way through the video (Y/n) saw Knockout, Breakdown, Starscream and Steve's eyes widen; it was kind of hilarious, and so were the uncomfortable expressions on all of their faces. To them, it was astounding that the female half of the human population could withstand bleeding for around one to two weeks every month accompanied by so many other symptoms, Knockout finally understood why (Y/n) was so angry earlier. When the video was done, all of the Cons (Y/n) invited had horrified expressions on their faces, even Megatron who was never squeamish.

"How? How do you go through all of that?!" Breakdown asked (Y/n) in disbelief, his holoform's eyes blown wide as he looked at her.

"Should I replay the video?" (Y/n) asked him with a threatening tone as a slight snarky smirk played across her lips.

"N-no! Once was enough!" Breakdown answered as his holoform disappeared and he ran out of the room; the video actually traumatized him a little and it would take him a while to recover from it, but he had more compassion for (Y/n).

"That was disgusting." Starscream commented before his holoform fizzled away and he walked out of the room; he would never admit to it out loud, but he felt bad that (Y/n) had to suffer so much every month.

"That video was… logical." Shockwave spoke flatly before his holoform disappeared and he walked out of the room, deciding to make a more effective painkiller for (Y/n) to take when she suffered from cramps.

"I'll go get you some pads/tampons, and a few other things too." Knockout told (Y/n) before his holoform fizzled away and he left the room so he could go do a little shopping for the things she would need during her period; ever since (Y/n) was brought to the Nemesis he began accepting the prize money from the street races he won, so he could use his holoform to go shopping without having to steal anything.

Throughout the entire video Soundwave took notes of how (Y/n's) living conditions could be improved so that she could be more comfortable during her period, although out of all the mechs in the room he was the only one who knew the basics about menstruation, but he always kept that knowledge to himself because he thought the others’ reactions to menstruation were hilarious. Soundwave, Dreadwing and Predaking's holoforms also fizzled away and they walked out of the room, although Dreadwing and Predaking needed to go out on a flight so they could process the new information easier.

"I now see why Optimus respects human women so much." Megatron mumbled as he deactivated his holoform and left; never in a billion years did he think that he would respect a human, but after he watched the educational video he fully respected human girls and women.

"My innocence is gone forever." Steve said with an uncomfortable tone before his holoform disappeared and he left (Y/n's) room, feeling sick to his tanks because he kept thinking about what he saw in the video.

(Y/n) felt oddly happy with herself as she watched each mech leave the room; she knew that certain aspects of human anatomy would be a shock to them and seeing them look so distraught was oddly satisfying. Since she was still in pain she decided to rest for a little while, at least until Knockout came back with the things she so desperately needed. Thankfully, she had plenty of her ultimate favorite snack in stock in her pantry and she always kept a couple of packages/boxes of it in her bedroom for easier access. (Y/n) kind of felt guilty for ruining Steve's innocence and she would apologize to him later; out of all of the Decepticons she personally knew, he was the nicest out of all of them and she kind of viewed him as the younger brother she never had. But from that day on all of the Decepticons treated (Y/n) with more respect, especially when she was on her period.