Victoria’s Secret model Miranda Kerr says husband Orlando Bloom is a hands-on dad to their 9-month-old son, Flynn. “He’s the best father, I’m really lucky,” she told Page Six at the unveiling of the Victoria’s Secret Fantasy Treasure bra at the East 58th Street boutique yesterday. “He wants to do everything,” Kerr said. “He changes the diapers, we have family bath time. It’s really nice.” The Australian beauty told us that having Flynn was “the best thing I’ve ever done,” but admits her life has changed dramatically. “Last night, for instance. He’s teething, and he’s jet-lagged because we just got here from Europe,” Kerr said. “I had about three hours sleep, and meanwhile he’s sound asleep. It is a little tiring, but you do your best as a mother, and I wouldn’t want to miss it for the world.”

PHOTOS: MIRANDA KERR

Kerr will return to Victoria’s Secret’s annual fashion show this year, having been pregnant during last year’s event. She’ll wear a $2.5 million diamond and pearl-encrusted bra for the show airing Nov. 29 on CBS.