Sex and the City star Moynahan, 35 and Brady, 29, who split in December after three years together, welcomed baby John Edward Thomas Moynahan on August 22.
Model behaviour: the 26-year-old was recently named the world's richest supermodel
Still, Gisele has embraced their new addition by reportedly spending ￡500 in gifts at exclusive LA boutique Petit Tresor.
A source told the New York Daily News: "Tom phoned in an order for Petit Tresor. Then Gisele paid for a separate order in the same phone call.
"She ordered this cute babygro for Bridget's baby, which has supermodel written across it.
The source quipped: "Just what you want when your boyfriend leaves you for a Brazilian supermodel soon after you get pregnant!"
