A pussy pump, also called vagina pump or vagina sucker, is a pump that allows you to swell your vagina . You can choose to pump up the entire area with a piston, but there are also small models that only focus on your clitoris, for example . A pump always consists of a suction part that you place on the vagina and a part for pumping. The latter often contains a handy squeeze ball that allows you to choose the desired intensity yourself.