The Penis Worm story is amazing. The concept is brilliant and hilarious. It's probably my favorite of the CBT shorts and I'm trying hard to think of how to write a version of my own.

The story would be even better if it had more verisimilitude. Certain aspects of the story are oddly unrealistic, like a person keeping a pet worm in her hair. A pet worm is strange enough, but if someone had one, it would be kept in a glass case, much like one would keep ants.

One of the best bits is how Teddy shows his penis to the two girls and lets their worm play with it. That feels very believable, so long as he doesn't suspect what the worm might do. Especially if the girls are pretty, that seems like exactly the sort of thing many guys would do with just a little encouragement.

One bit that seems unrealistic is how the girls seem to give no thought to the consequences of their actions. I have yet to think of a way to really improve that, except perhaps that Wendy shouldn't personify the worm so much. She makes a big point of calling the worm 'she' as if Wendy has affection for the worm and thinks of it like a person, but that doesn't fit with how she's putting the worm's life in danger. Realistically Teddy would have done more to try to save himself and that would mean trying to kill the worm. Wendy couldn't possibly be so short-sighted as to not realize that. Of course all that's beside the issue of them getting in trouble afterward.

Maybe the story could be set in a post-apocalyptic future where penis worms have emerged as one of the new species appearing to fill the gaps left by the extinction of most of the life on Earth. That way there would be no hospitals or doctors for Teddy to seek help from, and no police to punish the girls.