I would say it depends on how graphic you expect it all to become. You have to keep in mind that this is still a PG-13 forum, so topics have to be age-appropriate. Alternatively, this round could be moved into the 18+ Games and Roleplay category, which has this addition to the Code of Conduct:
The Adult Den is obviously only open to forum users who are 18+, so if you have any underage players, they would have to sit this one out.
To sum up, you can either
A) keep it PG-13 and carry on with business as usual or
B) switch over to the Adult Den, but only with the players who are over 18 years of age.
Blur + content warning counts as a best practice, regardless.
Hope that helps 