Pump

This story features at least one sexual scene involving the use of a pump.

A clitoral, vaginal or anal pump is a sex toy designed for women's pleasure creating suction and increase blood flow to the genitals or inflate cavities. A clitoral pump may be used on the clitoris, clitoral hood, labia or the entire genital area.

NSFW Example Clitoral Pump
NSFW Example Vaginal Pump
NSFW Example Anal Pump