Rihanna called RHOSLC's Mary Cosby

And then there’s Mary Cosby. One of the original cast members, Mary has always said exactly what was on her mind and is blunt ...
The Lucy and Ethel of RHOSLC. The post Why Mary Cosby and Angie Katsanevas’ Friendship is a Highlight of RHOSLC Season 5 ...
And I just said what I felt." Andy wondered if Mary was "nervous" at all to talk to her husband Robert Cosby Sr. about what their son had shared. "No, I needed him," the snowflake holder said.