Jennifer Lopez and Mark Anthony's 2 1/2-year-old twins have made their modeling debut as the faces of Gucci's new children's line, according to Us Weekly. Max and Emme appear alongside their mom in the ads. "It's the first time I have worked with my kids in that way," Lopez told the magazine. Lopez said that she and Anthony were initially hesitant to have their kids participate, but ultimately decided to do so because Gucci, in honor of the new line, donated $1 million to UNICEF's School for Africa initiative and $50,000 to Lopez's charity, the Maribel Initiative. "It's exactly why I'm excited to be a part of this. Now there are two Gucci spokesbabies for a beautiful cause," Lopez said. Related slideshow: The life and career of Jennifer Lopez
Us Weekly photos:Jennifer Lopez and her twins | J.Lo's style