I've two bodies, an outer body (transparent)  and a mirror (brown) which are bonded with epoxy (pink), I've modelled the epoxy after shrinkage of 5% which means there is now a gap between the epoxy and mirror 
I've put a local interaction (bonded surface) between the epoxy and body.
I want to do the same with the epoxy and the mirror which are presently not in contact due to the shrinkage of the epoxy and have the simulation pull the surfaces of the epoxy and mirror together to see the distortions in the mirror/body and stresses induced 

I can't seem to do it,  any help?