Can a brother and a sister marry a brother and sister of a different family?

marni: Can a brother and a sister marry a brother and sister of a different family?
Lets say Johnny and Mary are brother and sister. Alice and Chad are brother and sister from a different family. Johnny and Alice fall in love & Mary and Chad fall in love. Can the two couples marry? How can this work because one would be marrying the brother/sister of the other siblings wife/husband?

Answers and Views:

Answer by John Muirs Ghost
Yes, this is rare but I have heard of it happening and I don’t think there are any laws against it.

Answer by Gellignite
It is completely legal. There is no blood relation between the spouses.

Answer by Water Traveller
Of course they could marry, it’s legal.
It certainly would complicate the family politics though.
It could be a reality show on Logo If Johnny and Chad fell in love & Alice and Mary fell in love though, so much more fun.:)

Answer by sammy
there are no laws against it, but i’d race to be the 1st to marry the guy so ppl wouldn’t say I was incest or something for marrying my technical-brother. lol