Duolingo isn't only a beneficial resource for those wanting to pick up a new language. It also has gained popularity among language aficionados. However, sadly, it seems that even this popular platform is not exempt from the notorious Rule 34 phenomenon.
Numerous individuals found that Duolingual + Rule 34 fusion exist. It might come as a surprise, but evidently, there are actually enthusiast-created artworks based on characters from Duolingo which adhere to the infamous rule which states that "if it exists, there is porn of it."