But in the end, you'll have their back no matter what. And Kim Kardashian proved just that when she played "Spill Your Guts or Fill Your Guts" with James Corden on The Late Late Show.
She had no problem rating her sisters' fashion sense from best to worst (sorry Khloé).
Or discussing Kanye West's most annoying habit.
But when it came to addressing some pregnancy rumors surrounding her sisters...
...the 37-year-old reality star had to really think about it.
It didn't take her long to make a decision though. Kim chose not to answer (probably because of those threatening family group chats), and faced her punishment: drinking a sardine smoothie.
Kim, who's expecting to have a second daughter via surrogacy, took it like a champ, but then the aftertaste kicked in.
And that's when everything went downhill.
Everyone cheered after Kim literally took one for the team, making it clear that it will take a WHOLE lot to break her family's bond.
Watch below to witness all the wild antics go down: