Wife Finally got vagina sucker but huge ?

[Sniper]

Wife finally got the vagina sucker and we were ready to try it out but damn it no instructions so i thought that it would be easy to figure out kinda of like my penis pump. well we lubed the bottom to get good suction lube her lips and put it on and pumped well suction took place but as soon as i stopped squeezing the bulb the air went out now is this one that you have to constantly squeeze in order for it to maintain or does anyone have any ideas of how to keep the suction there.<br><br>Bought the pump at stockroom.<br>thanks