There was an animated HDT vagina 4.0? mod out there but it only works for older Skyrim.  I don’t know how to build custom characters so I am using plug and play mods but have the CBBE CBPC Bodyslide SKS etc foundation mods working fine. I installed all the Luna mods and her 4 standalone esp followers magically work with animated vaginas, but the NPC’s and my character have static vaginas. The CBBE physics all work great for everything else.    This was the closest CBBE HDT mod but it