Also known as: 感覚遮断, 感覚遮断落とし穴, 感覚遮断穴, 感觉遮断陷阱
When a character's lower body is Stuck, but their body's senses are blocked so they are Clueless of what's happening to them, which is usually Tentacle Sex in a Tentacle Pit.
Might include the character getting their sensations back and experiencing intense, overwhelming pleasure all at once.
The fetish (literally meaning "Sensory Deprivation") originates from post #6364507 by Shirabe Shiki.