03/11/2009 at 12:00 PM EDT
She's a stepmother already – but a newlywed Gisele Bündchen
says she is eager for more children.
"I want to have a big family," she tells Harper's Bazaar
for its April issue, in an interview that took place before her nuptials to Tom Brady
. "It's all good in that part of my life. It's one part of my life that I'm learning about every day. I've been challenged a lot by it, but it's the most rewarding part."
"I love kids," Bündchen, 28, adds. "It's amazing that I have the opportunity to hang out with my stepson all the time."
Bündchen is referring to Brady's 18-month-old son, John Edward Thomas, whom the supermodel says is very loving.
"He is so kind," she says. "He loves blueberries, and every now and then my dog, Vida, tries to get some food from him. He is so nice that he will give her the blueberries first. He is so cute and has such a sweet demeanor."
Bündchen also has plenty of tender words for her husband.
"Tom is a good guy," she says. "He has a very pure heart. He's very naive, almost like a child. That is my favorite quality about him. One thing that I thought was so amazing when I first met him is that he is innocent. He sees the world with [rose] colored glasses."
Of Brady's innocence, Bündchen says, "It's beautiful. But I think that is rare. I love that about him. No one else sees that. He's very strong and focused in his job, but he's so sensitive. It's amazing."
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