Get Texture Color from Stencil Marked Object, even if behind another none-Stencil Object


the example setup:
i have two objects in the world. One big object without a Stencil Value and one smaller object with Stencil=1.

When i read out the Stencil Values within my PP Mat, i get the whole stencil object, even if behind the bigger object.

But now i want to get the texture color of the Stencil object for all pixels. Is that possible? Can i read out the colors of Stencil objects, even if behind other non-Stenicl objects?

Thanks in advance