Warning Example
For WIPs that aren't exactly family-friendly (read: smut and gore, as well as "triggers" such as rape, abuse, or incest), you'll be required to post a warning before continuing. Like this!
Warning: Fail!Sex
Once, there was a dude. He found another dude and they both thought the other was hot.
So they fucked.
THE END.
Note that this only counts if the actual contact you're submitting for crit has it. If the fic in general has lots of adult content but the part you're posting is tame, you don't need a warning.