I'm not entirely sure specifically what 'burp puke fanfic' is about as it's not a common mainstream term. It could potentially be some very strange or niche fan - created fiction that involves themes related to burping and puking in a fictional context, but this is just speculation.
I'm not sure specifically which 'swimsuit puke girl story' you are referring to. There could be various fictional or real - life incidents related to a girl in a swimsuit and puking. It could be something like a girl got seasick while wearing a swimsuit on a boat and puked. Without more context, it's hard to tell the exact story.
At a school sports event, a runner pushed themselves too hard. They were so determined to win the race that they didn't listen to their body's signals. After crossing the finish line, they immediately puked on the side of the track. Their friends were there to support them, but it was still an embarrassing moment for the runner. However, everyone understood that they had given it their all and it was just the body's reaction to the extreme exertion.
One common theme could be the characters' extreme reactions during battles or encounters with grotesque monsters. For example, in some fanfictions, a character might puke after being exposed to a particularly nasty demon's stench. Another theme could be related to the use of puke as a symbol of a character's internal turmoil or fear. In a tense situation, a character's involuntary puking might represent their underlying anxiety.
It could be a moral about taking care of your health. For example, if the girl got sick because she didn't take proper precautions before wearing her swimsuit and going out, like staying hydrated properly or making sure the food she ate was safe. So the moral might be to always be aware of your body's needs and take steps to keep it healthy, whether you're in a swimsuit or not.
Once, my friend ate way too many cotton candies at a fair. Then he decided to go on a spinning ride. As soon as the ride stopped, he puked out what looked like a pink cloud. It was both gross and hilarious at the same time.
It's possible that only a very limited number of people have heard of 'burp puke fanfic'. Given that it's not a typical or appealing - sounding concept, it probably doesn't have a wide audience. It could be something that was created by a single individual or a small group with a very unique sense of humor or interest in the more grotesque side of fan - created content.
There was a 🐱 (cat face) emoji. This cat was very curious. It saw a 🌟 (star) emoji up in the sky. The 🐱 decided to climb the 🌄 (mountain) emoji to get closer to the star. Along the way, it met a 🐦 (bird) emoji. The 🐦 told the 🐱 that the star was too far away. But the 🐱 was determined. When it reached the top of the 🌄, it realized the 🌟 was still very far. However, the 🐱 was happy because of the beautiful view it saw from the top.
First, know the Supernatural universe well. Understand the characters' personalities, their strengths and weaknesses. When it comes to the puke part, describe it vividly but not overly disgustingly. For example, 'Dean's face paled as he lurched forward, a gush of bile rising in his throat.' Also, tie the puking into the plot. Maybe it's a sign of a dark magic affecting him.
My cousin went on a fishing trip. He ate a lot of greasy food on the boat. When they hit a big wave, he puked over the side of the boat. But the wind blew some of it back onto him. He smelled so bad for the rest of the trip, but the whole situation was quite funny in retrospect. He was so embarrassed at first, but we all still tease him about it. It's become one of those family stories that always gets a laugh.