We've recently discovered that my wife likes her nipples played with somewhat roughly. She doesn't want them ripped off, but she definitely likes them pulled and twisted aggressively. Usually for Valentine's day I get my wife several romantic things and then one sexual thing. I saw in a catalog some nipple jewelry. They aren't clamps, they more pinch around the nipple. Does anyone have experience with something like this? I couldn't tell if it was supposed to stimulate her at all or just be jewelry to look at.