Policy on sexually explicit content
Pokémon Showdown has a wide and varied userbase, with people of almost all ages enjoying the site. It is therefore against the rules to discuss anything sexually explicit, anywhere on the site. This includes PMs, even between two consenting adults. Any attempt to elicit sexual interactions with another user will absolutely not be tolerated and will be punished harshly. If there are suspicions that such behavior is taking place, we can and will check PM logs to investigate.
—Hugendugen on Mar 20, 2016