In Queen's Blade series, there's a scene where Airi is tickle-tortured by Melona (YouTube clip).
Which episode does this scene come from?
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I believe that's episode 3 "Dejection! Airi's Duplicity" in the third "season," known as Queen's Blade: Beautiful Warriors/Fighters, which was released as OVAs.
A plot summary from Fandom Wiki,
[...] Airi returns to the swamp and is confronted by Melona who ties her up and decides to torture Airi by tickling her. [...]