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.
Or just append a letter that increments every time you change your password, and keep a note of what the current letter is.
Passworda
Passwordb
Passwordc
…
When your z password expires, just wrap back around to a.