Frontstuck

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Frontstuck is when a headmate is fronting and, suddenly or not, becomes unable to leave front.

If a frontstuck headmate is also unable to communicate with the rest of their system, they may be considered front sealed as well. There can be any number of headmates frontstuck at once.

A headmate can be made frontstuck by a gatekeeper (or, in general, a headmate that has control over fronting.) This can be done to protect the frontstuck headmate,  the body, or the system.