"Brother Antroz" said ...Hmm, I'll see if that helps. I haven't been able to get any rigs packed with the models to really work though. Every time I go to load one, nothing happens. I'll look into it some more though.
From what little I know about it, that problem can be fixed by applying an IK rig, which prevents them from snapping back to the 'default' pose. The majority of quality nude models have their own rigs, and if need be, you can make your own, although it was a bit confusing for my muddle-headed self.
"BlazBro" said ...That is showing how you would interact with the waist, not the hips though.