When same-sex couple were allowed to "marry" there were always going to be challenges. Today another one came along, but with a difference.
An heterosexual couple is now going to the High Court to attempt to be allowed to have a Civil Partnership - previously only allowed for same-sex couples.
They do not want marry yet still be partners with the same equal rights in law conveyed upon same-sex couples; and in the spirit of equality why shouldn't they?