It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
First, get the right costume. Look for a bright yellow Pikachu onesie or make one yourself with yellow fabric and black accents for the ears, tail, and markings. Then, focus on the face. You can use yellow face paint to complete the look. Don't forget about Pikachu's rosy cheeks, which can be added with a bit of pink blush. Also, practice Pikachu's cute poses and expressions, like its shocked face or its happy hopping pose. This will make your cosplay more engaging and fun.
If the cosplayer traveled through the anime novels that they cosplayed, they might find some unexpected plots. For example, they might encounter their own characters and communicate with them. Or they might discover that something different was happening to their characters than they knew. In short, this kind of plot might surprise and excite them.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
Manga hentai involving Pieck often focuses on sexual and graphic themes that are not suitable for general audiences. It's not something to be engaged with casually.
I'm not sure which specific 'Pieck Finger fanfic' is the best. You can try looking on some popular fanfiction websites like Archive of Our Own. There might be a variety of stories there.
Often, there might be themes related to her abilities and how she uses them in different situations. For example, in battle or when facing challenges. Another theme could be her backstory and how it shapes her personality and actions in the fan - created stories.
These stories in cosplay conventions are important for the visibility of the lesbian community. When cosplayers act out these stories, they make it more real and tangible for the audience. It can also encourage more young people who identify as lesbian to get involved in cosplay, feeling that there is a place for them and their stories in this community.