That's why i made an extra set of all the nipple rings and navel piercings that use the normal high poly meshes. They have a '(No HDT)' attached to them in-game and will be properly positioned, so you can use them with the normal body (or a skimpy armor D).
If you use the standard piercings with a non-hdt body or armor it won't be positioned right. All of them are set to use the hdt body and will jiggle with it (like in the GIF =D). Pretty much everything from the original mods: 10 Nipple Rings (5 Golden +5 Silver), about 40 navel piercings and 30 Prince Albert Piercings. Since the authors explicitly stated that their assets could be used, i decided to make this, but all the credits for the original work should go to them.
This is a merged and refitted version of three LE mods: SOS - Mens Nipple Rings for Schlongs of Skyrim Body and Navel Piercings for Men and Adult Accessories for SAM. Note: I didn't create any of these textures or meshes.