Well, I'm pleasantly surprised!! Bought the Nipple Enlargement system a little while ago and didn't use very much because I found the edge of the cup was a little painful on nipple. Used it again today, and it was much less painful, probably due to the work I have been doing on my breasts, but to my surprise my nipples have grown longer since the last time I used them. So, clearly along with the breast cups I will now be including the Nipple cups in my regular sessions as of today! Very excited! Recommended if you want longer nipples!