Duolingual is more than just a beneficial tool for those looking to pick up a new language. It also has become popular with language hobbyists. However, unfortunately, it seems that even this popular platform also falls victim to the notorious Rule 34 phenomenon.
There are countless people found that Duolinger + rule 34 combo exist out there. It may come as a surprise, but ostensibly, there are indeed fan-made illustrations based on figures from Duolingo that adhere to the infamous principle stating that "if it exists, there is porn of it."