Harbingers of Doom
When my friend Dee became pregnant with twins, I contacted her and said, "Hey, I think we need to do a maternity session where you are an evil goddess, bringing forth the Harbingers of Doom upon the world and Josh needs to be your winged, demonic protector." Her response was quite enthusiastic. Side note: the costuming for this comes from both Dee's and my bellydance collections, I made Josh's horns from many fabric "petals" folded in the kanzashi style, and I made Josh's wings out of a wicker chair.