Thanks George! I accidentally fell in love with geodatabases
I'm glad you replied! After I posted this I tinkered with it a bit more. If you connect via ArcCatalog as a sysadmin user you will see those databases in the database connection drop down (even though the dbo user isn't explicitly mapped to those databases in user mapping). If you use a non-sysadmin user to connect (like a data creator) then those databases will not show up, at least in my testing thats what I am seeing so far.
It was just curious to me as I hadn't used those reporting services before.
Hope you are well!