{Plugin: WooCommerce Membership] Linked Members

Using WooCommerce with their Membership, Subscripts and GRoups Plugin and trying to set-up a way to Link Members. The situation is we offer 3 membership plans. single, Couple and Family. If you buy a Couple pr Family Membership there needs to be an additional user/members created that are tied to the original Membership. So when it expires so does the Child/Sub Members associated to the Primary.

Can not get my head around how todo this or is there a better product that WooCommerce Membership and Subscriptions