How do you deal with rigging shorts, undies, tights, between legs? O_O What's the trick to a good looking weight paint in the crotch area?

Im here looking at my rig (stick) vs an auto-rig; On my rig, lola's shorts have a bit of a wardrobe malfunction when posed seated flat or bent over. i'm not sure how to fix that.
O_o?

#NSFW #wardrobemalfunction
#blender3d #rigging #weightpaint
#NeosVR