Factive

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Factives are headmates that are based on a non-fictional source, like another person. Sources can include celebrities, historical figures, friends, abusers, or anyone else. The source can be a singlet or a member of a system (including their own, or someone else's).

Related Terms
Introject is an umbrella term which includes fictives and factives, which can be considered medical and avoided by certain types of systems. Though some systems consider the term to be open for use in a non-medical context. The term should not be used for systems without their consent.

Fictives are headmates based on a fictional source.

Soulbonds can include factives.

Factive-flux is when a headmate's connection to their source(s) varies over time.