Actually, you might want to piggyback. The reason being, whoever is "on" can get all the attention! Let him go first, and baby him through it. Make it sort of an enjoyable experience, especially for those partners who were slightly cynical, like my husband was (he's done 3 now). Then, when you do it right after, he'll know exactly what you are going through.
My husband and I love to burst out of the bathroom yelling numbers, colors, sizes etc.!! ha ha.