Rules

This game is for fun. There will be no sexual assault. If you want your character to be dominated by someone else, such as a marauding demon, make sure that is clear out of character early on in the encounter.

Everyone is a little bit gay. Even if you are 99.9% straight, you can still understand why someone your gender can be hot. Any NPC can be turned bisexual given the right motivation. You as a writer might not want to write scenes about it, though.

When sex seems like it might be initiated, please indicate one of these options:
1. Character is not into it. Sex will not occur.
2. Character is into it, and writer is into it. Sex will occur, and will be seen "on-screen."
3. Character is into it, but writer is not interested in writing it. Sex will occur, but will be done "off-screen."

Pretty much any sexual activity is enjoyable once you have consented to it. A submissive giving oral sex to a phallus will also be enjoying themselves. Pretty much everyone can enjoy anal stimulation. Etc.

STIs basically don't exist.

Pregnancy is largely optional. There is no need for in-character birth control. You may still use it for fun; some people like having brim-full condoms around to prove how much sex they just had. Similarly, some people have a breeding kink. Make it clear out of character if you want to take that risk.

On that note, please indicate your characters' kinks ahead of time in the character description. Nothing like being a bratty bottom only for your prospective dom to take your resistance at face value and leave.

In addition, please indicate any kinks you definitely don't want your character to experience.

Things that will definitely be in the game:
Oral sex
Anal sex
Vaginal sex
Multiple penetrations
Sex workers
Sex between humanoids and clearly non-human things.
Sex with monsters including werecreatures, mimics, and blob monsters. All these will be sentient enough to consent.
All genders, sexualities, and sexes will be represented. Men will have breasts, women will have penises, etc.
 (The word "futa" is apparently offensive so we will say "intersex" if it comes up.)
Cum inflation
Pregnancy
Lactation
Body modification including breast enlargement
Magical sex changes
Implanting eggs into existing orifices. Nonviolent and nonpainful laying of eggs.
Nonsexual bloodletting and blood-drinking
Tentacles
Consensual restraints
BDSM
Spanking, including with crops and whips.
Consensual humiliation and "cuckolding".
Non violent swallowing of characters.
Leashes and collars.
Drug use.

Things that will NOT be in the game
Pedophilia. There will also be no child-like adults. All sexualized characters will clearly be adults.
Mutilation and torture.
Death during sex
Asphyxiation (consensual choking, yes. Breath-play, no.)
Raceplay.
Feces.