Ok.. I have a question. I love love the concept of simulation in my animations (in Poser).

I have used the "rg Breast Jiggle System for V4s" for some of my V4 animations in poser. It works great. However, I want to advance more with my simulations on other parts of the V4 body (other then just the breast). Like the buttock. I saw the "Real Buttock System V4 " and "EasyButtock_V4." But I'm not sure if you can use them for simulations in animations or like the rg system. I read about these systems on their pages but still don't understand if they work for animation. Can some one please tell me if either one of these buttock systems work for animation? If they do, how do they work? If they don't, is there a buttock system (that is sold here or any other site) that allows the buttock to be more animated through simulation?

 Look at the figure for any morphs affecting that area.  Then apply those morphs to get the affect you want. 

For v4 look at gluteraise and gluteflex and try some negative values in the morph as well.

For jiggles, I'd recommend Dynachest, available here at Renderosity. :) It works great for breasts, but is not limited to it, you can define any morphs that are affected by the physics simulation. I only experimented briefly with it, so I am not sure how good the results actually are, but I was able to assign the simulation to the buttocks and get some movement going.