Bigger, harder and more sensitive nipples are just the flick of a switch away with this vibrating nipple pump. Sucking onto each nip, it creates a mini vacuum that pulls even the shyest nipple to attention, increasing sensitivity to touch. Pop these nipple pumps on shortly before sex and wear them for a few minutes to increase sensitivity to touch. Using the pump for short periods for play and infrequently will not cause any permanent change to your nipples, but it does feel fabulous. Using this pump regularly can result in a permanent enlargement and toughening of the nipples, causing them to become erect more easily and stay erect for longer. Ideal for those who lust after perkier nips or want to tease out shy, inverted nipples.