Okay, here's what I found:
Written Content
The following written content is restricted:
1. References to genitalia/asses/breasts/sexual acts in usernames and user titles. (Or racial slurs and other obviously inflammatory content.)
2. Talking
in-depth about sexual topics
on Discord, excluding the channel specifically made for bantering topics.
3. Legally obscene material, including explicit necrophilia or sexual scenes involving prepubescent characters (under 13).
Claiming a character is 13+ will not cause exception for characters who are nonetheless depicted as prepubescent through physical description or behavior.
Written discussion of violence, illegal drug use, and other illegal activities is allowed
except for discussion that aids in committing illegal acts, such as disclosure of where to obtain illegal drugs or sharing of pirating resources/illegitimate streaming sites, or indicates premeditated and explicit intent to commit violence on others or oneself (threats of assault, murder, suicide, and self-harm).
This does not apply to roleplays or works of fiction, only to out of character discussion.
Other than that, you're absolutely fine. We're a 15+ site, not a PG-13 site. Talking about sex, violence, and using profanity in different
languages icly is allowed.
... So, since it only states that sexually explicit content in user names and user titles, so I guess in game it's okay. (Unless of course it refers to illegal stuff like pedophilia.)