There have been some who call Nick and Starr - "Team Incest" - because of the vibe they seem to give on the show.
I believe Blake and Paige were also called this, remember the massage scene in the RV? hehe
But you know what, I just think both teams have a great relationship, brothers and sisters who are close in age and grow up together have a unique relationship, sometimes its a fighting rivalry kind, and other times its a very close loving type, but that doesn't mean incest.
I have a very close loving type of relationship with my sister, and I bet if we ran the race we'd be called team incest, but that label is really stupid cause that is not the case at all, far from it. Heh, when we go out in public often people think we're a couple lol, people just have perverted minds!
I respect both Blake/Paige and Nick/Starr's relationships, I can relate and I think it is great that family can be so close.