You go to school. It wasn't an ordinary day today. You heard things about a bizarre UFO reaching earth and other conspiracy theory junk. You however didn't care about any of that and just wanted to head to class and do your thing.
Your mature teacher does her job as usual teaching you guys until she briefly complains about a neck sting or bite. Must be one of those pesky insects at work again. Then she resumes her lesson teaching us as usual. But that's when something insane happened....as she pointed out towards the table, her arm instantly turned yellow and insect-like, ripping her clothes with two pincer claws instead of fingers holding the chalk. "T-teacher's arm." one kid yelled. "Teacher is turning into a monster." another voice said. We were all mortified. The moment she realized what was going on is when her transformation started. "What? I feel my body shriveling." she said. Her ears grew pointier, antennae appeared on her head, she grew larger, her eyes turned black and yellow, a big insect's bottom appeared from her butt which made her piss herself, her skin became tough and armored like an insect, her limbs grew longer and thinner with some spikes here and there, her breasts were exposed and grew larger her broad shoulders were pointed upwards and brown moth wings appeared behind her. (What the fuck in the H.R. Giger just happened?) She smiled at our reactions and said "Aren't I pretty as a bug woman? Don't think you can escape me!"
She became a humanoid insect and wanted to infect us. We began panicking and running.