Posing ideas for group shot of 3 couples

This coming weekend my mother and her two brothers and spouses will see each other at a family reunion that is being held at a small church. They are all in their 80's and would like to capture a photo of them all together again. I was considering taking this outdoors.

I am looking for a creative way to pose 3 couples for a photograph instead of just having them all line up in a straight line? Ideas or examples appreciated!