Pointer of related product to parent

[csho]

In virtumart version 2.6 that I currently have, I have set some related products manually from a specific product.
Is there any way to create (or if there is any plugin) a logical connection to show from the related product back to the parent?

The way it's set is that a product has some spare parts as related products, so when I view a spare part I would like to show me the product that is linked with.

Something like this:
Product -> spare part (already done through related products linking)

Spart part -> product 1
                 -> product 2
etc.