A married couple with two women has the same chance of having children as a man and a woman.

Women married to women become mothers almost as often as women married to men, analyses show. This is evidence of top-notch fertility treatment. On the other hand, marriages between two women end in divorce twice as often.

A large marble track has found its way from the children’s room’s myriad of stuffed animals and picture books and out into the bright kitchen-dining room of the Nørrebro apartment, where colors and pieces spread out.

“I’m just as often the one who asks if we should play with it as our son,” says Maja Nyvang Christensen, smiling at her girlfriend, Sissel Moos.