Duolingo, the language-learning platform isn't only a beneficial tool for those interested in acquire a new language. It has also gained popularity among language hobbyists. However, regrettably, it seems that even this popular platform also falls victim to the infamous Rule 34 dictate.
There are countless people found that Duolinger + 34th rule fusion are out there. It could come as a surprise, but apparently, there are user-generated artwork based on characters of Duolingo that follow the infamous principle which states that "if it exists, there is porn of it."