Display list of subsites on a multi-domain site

How can we display a list of subsites for a multi-domain subsite?

ie.
multisite.com
multidomain.multisite.com = otherprimarysite.com

how to list these on otherprimarysite.com
cooking.otherprimarysite.com
cleaning.otherprimarysite.com
etc.otherprimarysite.com

and a follow-up would be if can use semi-global recent posts/updates for these sites separately from the rest of the network?

thanks