Miranda Kerr has revealed how she keeps her modern family running smooth.
At the 150th birthday celebration for Harper's BAZAAR, she revealed to reporters that their "modern family" is getting along really well.
"Orlando and I are literally like family, he's like a brother to me," she said. "It's very weird, but we really care for each other and we have a great relationship, so I feel very lucky."
As for Miranda and Orlando's six-year-old son, Flynn, he also loves Dad's girlfriend.
"They're great," Miranda said of her son's relationship with Katy. "They get along really well."
Miranda said that she and Orlando have an agreement when it comes to introducing their son to new partners: that they had to know their new partner for six months and "feel good about them".
Katy, 32, and Orlando, 40, have been dating for roughly a year, and were first spotted flirting up a storm at last year's Golden Globes after party.
Meanwhile, Miranda announced her engagement to Snapchat founder, Evan Spiegel, 26, in July last year.
She and Orlando divorced in 2013 after three years of marriage.