This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
As long as there’s an age restriction and tools to filter out anything you don’t want to see (which there are), why is it a problem? Most people on steam are adults. Just hide it if you don’t want to see sexual content.