Originally Posted by
weero
For the same PNR, there is no upper limit for the number of companions who can be checked in. At least there is none published.
From my experience I have never had any problems checking-in both myself and other people at the *G desk even though I was the only one with status.
If everyone's on the same PNR as you then there should be no issues whatsoever, regardless of whether they're family/friends/others.
Of course as mentioned, only you get the +20kg and you can only bring in one additional person into the lounge.