This is what I believe James Cameron should have done with that Na'vi Boobs.

This is a computer generated belly dancer. She is shaking her natural boobs, in the virtual world. She is suppose to be doing a belly dancing shoulder shrug, or something like that. The fact that she is naked makes it even easier to see her busty chest.

Naked woman on the freeway

This is a free animation of tits that jiggle just like big natural tit. I used magnets to animate Poser 6 Jessi breasts individually even though the e-frontier model does not provide the breast morphs. This is a 3 quarter view of this animated babe.