Evening Mr. FG and WG, I don't know where you may be getting ur info from, but I am EXTREMELY nipple sensitive, and have a a low pain tolerance. And, I am sooo surprised WG, from your posts about nipple action, that you yourself have some residual discomfort. I guess you need to know when to just say, "no." Perhaps if you meet that person again, which I sounds like you may, you need to set boundaries so he doesn't really carry u to the edge and back many times?
Pharmacies care a number of nipple creams for nursing mothers with sore and cracked nipples! One of which in the midwest is called "Udder Cream." I hope u heal before you put on your next nipple clamps, ouchy for me! And FG, hope you have a great rest of the month you dog! WG2