does this happen frequently that when there are weddings/reunions and we don't know who our relatives are?

Ivan Velazquez: I don't know how common that is, but no doubt it does happen. Weddings and reunions are family oriented and lots of families are broken up. People go their whole lives or most of it never meeting certain family members so if you come across someone at a wedding/reunion, chances are your not gonna be completely sure of who everybody is exactly. So it is quite possible you could end up having sex with someone and finding out after the act took place that you just hooked up with a relative. So yeah, I agree. At those kind of events, make sure you get the proper introduction before you consider doing anything just to be on the safe side....Show more

Hubert Jestes: Yes. The fault of technology, families are drifting apart, get divorced (because the family support is not there) remarried, and start afresh. I've got nieces and nephews, + their kids that I don't even know the names of.Peace.

Tom Romer: I wouldn't know babe, I married my sister