How does skyrim handle mesh deformers ?

[dzorro]

Right now i am trying to create full organic looking mesh, but i am unsure how does skyrim handle mesh deformers ??

 

So far it's been great we have bouncing boobs or butt, but all it actually does rotate bone to simulate this.

 

I have been learning tutorials about more organic rigging, witch will take it few steps further, like not only rotate, but also allow more types like bouncing but also when you grab you can handle to deform of breast so it looks more organic then static like it is now.