Consulta SQL para amigos mutuos

Dados dos usuarios, @friend1 y @friend2, encuentre todos los usuarios que son amigos en común:

SELECT user.uid
FROM user
WHERE EXISTS(
    SELECT TOP 1 1 
    FROM Friends 
    WHERE Friends.fuid = @friend1 AND Friends.fapproved = 1 
      AND Friends.fuid2 = User.uid
  )
  AND EXISTS(
    SELECT TOP 1 1 
    FROM Friends 
    WHERE Friends.fuid = @friend2 AND Friends.fapproved = 1 
      AND Friends.fuid2 = User.uid
  )