incest

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Definition

Incest is an NSFL tag referring to sexual or romantic relationships between blood-related family members.

This includes a wide range of familial relationships such as siblings, cousins, parents and children, twins, and other blood-relative family dynamics.

In fictional and character bot content, incest is a recurring theme across many genres and settings, particularly within anime, manga, visual novel, and roleplay-inspired media. Portrayals may range from dramatic or taboo-focused narratives to comedic, affectionate, or fetish-oriented scenarios.

Use inseki instead for non-blood familial relationships such as adoptive relatives, step-siblings, or step-parent dynamics.

Usage

Apply this tag to any bot where a sexual or romantic relationship between blood-related family members is a notable part of the scenario or character dynamic.

This includes both explicitly stated relationships and scenarios clearly built around incestuous themes or implications.

Where possible, various incestuous A_x_B type tags exist and should be applied, ie:
father_x_daughter
For a more definitive list, look at the implications at the bottom of the Wiki page.

Do not apply this tag to:

• Step-family relationships
• Adoptive family relationships
• Non-blood relatives connected only through marriage or household structure

Use inseki for those scenarios instead.