Couple get divorced so their girlfriend doesn't get jealous

When Cristina and Benno exchanged wedding vows, they never expected another woman would end their marriage.

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But, 12 years later, the parents of three are getting divorced – so that their girlfriend won't get jealous.

Now either Cristina or Benno Kaiser will marry their 21-year-old lover, Sierra Kuntz, so that all three will have legal rights to their children. More on the story in the video above.