Virtual image of a virtual object

During early classes we are taught that real image of a real object is inverted with respect to the object. Similarly virtual image of a real object is erect with respect to object.
My doubt is that can we make a similar analogy for a virtual image of a virtual object and what would it be?

PS: please do not quote the example of two plane mirrors with an object in between them for this. Here I am oriented towards lens and curved mirrors.