"Wait...you have wives!" Katie thought that Dumbledore would never be heard with the plural form of marriage, nor the singular for that matter
"Yes, well not on the books, for the Ministry is well..."
"We get it, really conservative, dictatorial, corrupt, ect..."
"Yes, they are really anti relationship, actually. They have little desire to have more than a heir...as I do believe you four know" he noted those who had been kicked out of their families, who nodded "Specifically a male heir, and females are just trade material for alliances of families in the Wizengamot...cruel but sadly existent. They dislike having multiple lines in a family, despite its benefits, so the multi soul bond is illegal. For good reason, probably"
"Why?" Oh, what was next, would he turn into a mutant elf, a crazy god...
"It is a fact known by those who look into soul bonds that you cannot be a truly powerful wizard without a multi soul bond..." he let that hang for a few seconds
"VOLDEMORT TOO!" now they were ill