Everyone came to the wedding, including a distant 'cousin' no one had heard from in years.
He's her 'first cousin'. = He and she are 'first cousins'.
He says politics and show business are 'kissing cousins'.
(..) Strider. Baggins. Baggins. Baggins? Sure,I know a Baggins. He's over there. Frodo Baggins. He's my second cousin,once removed on his mother's side... ...and my third cousin,twice removed.... -Pippin! -Steady on,Frodo. You cannot hide. I see you. There is no life... (..)2001 The Lord of the Rings: The Fellowship of the Ring