User blog comment:DandyAndy1989/Season 3 episode predictions/@comment-1650307-20171221052403

Actually... I think "Friendzy" is that plot that was described by the Loud House staff at a con not too long ago. Basically Lincoln finds out that he can get special treatment from his sisters when he invites a friend over, so the sisters catch on and each invites one of their friends over, then Lincoln catches on and invites two and the sisters invite two and so on. It sounds like it and because both this and the episode that will feature Sam are both boarded by Jordan Koch and the episode is about friends, I think Sam is one of Luna's friends she invites, making it her appearance in Season 3.

Just a theory tho