"Two Is A Coincidence, Three Is A Trend"

RENEE MONTAGNE, HOST:

Good morning, I'm Renee Montagne.

Two is a coincidence. Three is a trend. That's why an Oklahoma City house has been dubbed The Twin House, after a third consecutive couple living there had twins - a boy and a girl each. Current tenants, Brady and Chelsea Smith, said they didn't believe in the twin mojo when they moved in. Then an ultrasound showed she was expecting twins. New father Brady Smith told the Oklahoman, now his friends won't even drive down the block.

It's MORNING EDITION.