Some fucked up worldbuilding I've done is the culture of fish people in my world have a lineage that resemble anglerfish. And yes. They reproduce the exact same way. There's a famous in-world romance novel written about it too.
I keep thinking about the Matrix as a trans allegory, and this scene from the Animatrix always hauts me. This machine is protesting in the "million machine march" for the right to be treated with dignity and the very recognition of her humanity. In response, she is viciously assaulted and murdered, called a "skinjob" for daring to look like a woman. Her last words as she is being maimed are
Every now and then my cis male friends bring up bottom surgery and ask me if I’m gonna get a mega shlong and I think it’s the funniest running gag we have
One thing I enjoy about rpgs is when a rule or mechanic is completely out of sync with the story situation. For example, the humble Brain Mole in Pathfinder needs to latch onto spellcasters so it can drain their energy. This means the designers need to give it a high Grapple bonus. And outside of the context of “hang on and drink magic power”, this means that the Brain Mole is an elite wrestler. With a +10 to grappling, this rabbit-sized creature can bite the average commoner and drag them bodily around the room, or put them in a full Nelson. This thing has a strength of 4 but it’s the Hulk Hogan of psychic parasites.
Idea: you can take a Brain Mole as a familiar! Play a luchador wizard who has learned all their moves from the creepy mind-eating rodent that lives in their duffel bag!