Duolingo, the language-learning platform is more than just a beneficial tool for those interested in acquire a new language. It also has become popular with language aficionados. However, sadly, it seems that even this popular platform also falls victim to the notorious Rule 34 dictate.
Numerous individuals stumbled upon that Duolingo® + 34th rule union are out there. It may come as a surprise, but ostensibly, there are user-generated artwork based on characters from Duolingo which abide by the infamous rule which states that "if it exists, there is porn of it."

Rule34 If it exists there is of it