A fetish consisting of an character falling into a [[tentacle_pit|tentacle pit]] and having their senses (= [i]kankaku[/i] in Japanese) cut off (= [i]shadan[/i]) usually by either magic or paralyzing poison, while being ravaged by tentacles while being completely oblivious to the fact due to the cut off senses. Often includes a follow up where the sensory nulling ends for one reason or another, which causes the victim to be forced to feel intense senses of overwhelming pleasure all at once. [[Breast_expansion|Breast expansion]] and [[inflation]] are often present as well.
In rare cases when tentacle pit is not involved but the setting is otherwise similar, the tag is still applicable.

Originating from post #6364507, which also gives the fetish its name.

h4. See Also:
* [[tentacle sex]]
* [[emotionless sex]]
感覚遮断 感覚遮断落とし穴 感覚遮断穴