Paddles

The sound of a generator started, and a trapdoor opened.

"Mei... what is that?"

"Paddles!" And on cue a spinning airplane propeller with wooden paddles instead of propeller blades came up, slapping into Kendo's cunt.

"Ow ow ow ow!" Kendo spasmed as the wood smacked into her unprotected cunt. They weren't moving that fast but there were so many of them that it more than added up, the stinging soon giving way to searing pain as her unfortunate pussy was destroyed by the unrelenting flurry.

"20... 40... 60... 80... 100!" ,Mei cheered as the paddles stopped. Kendo hung there, barely conscious after that brutal assault.