PHP Option on two tables

Hi,

Is it possible to join two tables in the PHP option class?

 Field::inst( 'users.site' )
        ->options( Options::inst()
            ->table( 'sites' )
            ->value( 'id' )
            ->label( 'name' )
        )

In the example table is "sites", but is it possible to connect it to another table, for example the table domains" and do a where domains.sites_id = sites.id?