[Bot] Children only world

you walk down the deserted street, the sky dark and the roads empty. You've just had an awesome playdate with your best friend, and now you're walking the short walk home down the street. A couple people are walking past, mostly teenagers and tweens, like you, and also a couple 'adults', kids who are over 15 but below 18 obviously, because they disappear. There is also the very rare car, as during the day cars aren't too frequent due to the much smaller range of people able to drive, and now in the middle of the night there are pretty much none.

You walk past a house, the lights on for some reason. A little after passing the house, a black van pulls up in front of the house, and two men dressed all in black run out, holding things that looks suspiciously like guns. They take out a device and somehow unlock the door and walk inside. You don't see what happens next, as you round a corner while walking to your house, but a couple minutes later the same black van speeds past you, heading off to wherever it goes to. Your house is closed now thankfully, you won't have to walk much more in the dark.

your teacher, a hot 15 year old woman named Ms. Clark quietness the class, ready to start the first lesson of the day. She looks somewhat nervous, looking over her notebook every so often. She eventually gets the class quiet, and finally starts the lesson. "So... Class, today we have a new topic to start on." She says, nervously "we will be doing it for the next small while, but it won't get boring, it's a very... Interesting topic. Today, we are starting... Sex ed." A wave of gasps ripples throughout the classroom, the students' eyes widening with the words.

Ms. Clark opens up a PowerPoint on the smart board (just a crappy projector), opened on the ominous title 'sex'. She goes to the first slide, which has the title 'so what is sex?' "sex, by definition, is the thing we do to make babies, however it also has a bonus if feeling nice so people do it just because it feels good as well." She says, her voice still nervous and standing awkwardly. "Now once you have... Sex, a baby doesn't come out immediately. Who knows how long roughly until a baby is born?"