Re: Two sisters getting married to two brothers (from another family) good idea?
My nani and dadi were twin siters, and they always lived happily. Never fought or argued. But there are some other ladies in the family who are married to 2 brothers, and they don't get along at all. So it depends on the individual.
Oh and I have also heard about superstitions that if 2 couples get married in the same house, or at the same time then one of them is going to face misfortunes. But I think that's total nonsense.