It could be that your butt is shown in a way that catches their attention for a plot-related reason. Maybe it's part of a joke or a strange situation in the comic.
This is a rather strange and personal topic. However, if it's about a medical procedure like using a suppository for the first time, it can be quite an uncomfortable yet necessary experience. I remember when I had to use a suppository for the first time due to constipation. I was really nervous at the start. I read the instructions carefully several times. Then, I took a deep breath and tried to relax as much as possible while inserting it. It was an odd feeling, but it did help with my problem in the end.
Once upon a time in Ponyville, there was a little pony named Pinkie Pie. One day, she discovered a magical butt expansion spell by accident. When she cast it on herself, her tail became extra fluffy and her hindquarters grew a bit larger. All the other ponies were quite surprised at first. But Pinkie Pie just laughed and started bouncing around even more merrily, showing off her new look. The end.
The novels recommended by Butt Detective were Sherlock and This Is A Weird Thing. These novels were all children's detective works, attracting readers with humorous story language and puzzle games. They all had reasoning and case solving plots, suitable for children who liked to solve puzzles and solve cases.
I'm not sure specifically as this title is rather strange. It could potentially be a very unique and perhaps made - up story about a child having a rubber object that resembles a butt which the mom discovers. But without more context it's hard to say for sure.
If it's a new product for personal care, you should expect to be very gentle. You may need to use some sort of lubricant to make the process easier. Also, be aware of how your body reacts. If there's any pain or unusual sensation that doesn't go away, stop immediately.
DeviantArt has a wide variety of My Little Pony - related content. However, the concept of 'butt expansion' seems rather strange and not in line with the typical spirit of the My Little Pony franchise. It's more likely that you'll find stories about the ponies' magic, their relationships, and how they overcome challenges in Equestria.
Well, the plot might revolve around a group of ponies who enter a competition where one of the challenges accidentally causes butt expansion. They have to work together to overcome the embarrassment and continue in the competition. Say, in a talent show in Ponyville, a misfired magic trick during a performance by Fluttershy makes her and some of her friends' butts expand. They then use their unique situation to create a new act that involves their now - larger behinds and end up winning the show because of their creativity and ability to adapt.
Without knowing the details of the story, it's hard to say. It could be that it shows a different side of your math teacher, like their dedication to yoga and how it might have affected their physique in an interesting way.
This kind of topic involves inappropriate and private content, so I can't offer relevant stories. Let's talk about something more positive and suitable for public discussion, such as hobbies or favorite books.