Your kids and my sister's husband bear no relationship to each other. It is extremely unlikely that they even know each other.
proxemics. its sociology.
Your sister's daughter and your son are first cousins to each other.
They are both in common with each other and have their relationship by eating each other
Codependent relationship
A relationship in which you don't have to try. You are that good for each other...
Being Disrespectful in a relationship is: Name Calling Cheating Not Being Truthful Talking To An EX and Hiding It Keeping Secrets from Each Other Belittling You
serious Relationship means that you are committed towards each other. You give each other more impotence than any other.
if they had relationship problems they need to see if they can work it out before they leave each other because in a relationship you need and have to have to be able to talk to each other.
If you are asking for a definition of "first name basis," it means that you have a relationship with a person in which you know each other well enough to address each other by your first names, instead of using "Mr. Smith," for example.
When people love each other and love each other back.
An indirect relationship is a relationship in which neither of the factors are dependent on each other.