Gisele Bündchen bared all for the pages of Vanity Fair, but it’s what she said, and not her spectacular appearance, that’s sparking gossip.

The hot topic? Claiming "100 percent" ownership of the son of husband Tom Brady and Brady’s ex-girlfriend Bridget Moynahan.

"I understand that he has a mom, and I respect that, but to me it’s not like because somebody else delivered him, that’s not my child. I feel it is, 100 percent," says the Brazilian model in the magazine’s May issue. "I want him to have a great relationship with his mom, because that’s important, but I love him the same way as if he were mine. I already feel like he’s my son, from the first day."

John Moynahan — son of the actress who played Mr. Big’s wife on "Sex and the City" and New England Patriots quarterback — was born August 22, 2007, after the couple split and Brady already moved on with Bündchen. According to Bündchen, while Moynahan’s pregnancy was "definitely a surprise for both of us," she takes the role of stepmother very seriously.

As far as becoming a mother to her own brood with her football-star husband?

"I would like a big family," she says, before continuing:

I love children. When you come from a big family, you see that growing up you’re learning how to share. Your sisters have got your back; you’re not alone in this — ‘We all support you!’ Your family provides that; it gives you a sense of safety, and it’s a very grounding feeling. That’s why I feel I can fly away, because I have those roots and they’re so deep. This is what I want to have in my life. This is why you get married — you want to create those roots together; you want to give that to your kids. I would also love to adopt a child from Brazil. When you come from São Paulo, you see five-year-olds sniffing glue on the corner. You think if you make a difference in the life of one of them, that makes your time on this earth worthwhile. I will have a colorful family, like a rainbow. I have dogs from rescue; they are all my dogs. Children are like little angels — there’s no way you can’t love them.

Click here for more from the Vanity Fair interview.