Does snake suction cups work for enlarging nipples?

Yes, I think they do. You have to use them everyday. I use mine all the time, the thing is to start out slow...like 20 mins and then work up from there. I can cuurently wear mine all day and I do notice a huge change in my nipple width and length. My husband also says he notices a change, and we both think my nipples are more sensitive. Love them!!!