Here is a video of the Alyson Character rendered in Poser Pro 2010. I used dependent parameters to make the breast move. I edited the hip x,y, and z rotation parameters and linked them to the breast morphs using the start teaching tool.

Stereoscopic Boobs Poser 8 Alyson Boobs boobjiggle bouncing boobs Fuko Tits

This is an animation of Victoria 4 with bouncing boobs. The rendering is ok considering the fact that I have it on the preview mode. I still don't know how to keep surface collisions from happing, but the jiggling boobs is what people care more about on these simulated large breast!