Sandra Bullock is responding to rumors that she's adopted a baby girl.

In a new interview with AP, the 51-year-old actress says that if she had indeed adopted a second child, "everyone would be hearing about it."

"There's only one adopted child in my household and his name is Louis," Sandra says. "If I had an adopted child -- if I had a second adopted child -- everyone would be hearing about it. I would be loud and clear and say, 'Yes, I have officially adopted a second child.' Right now, Louis must be it."

WATCH: Sandra Bullock -- Having a Child 'Forces You to Get Your S**t Together'

Clearly, the adorable Louis is still the apple of her eye.

"Delicious and beautiful," Bullock gushes about how her son is doing.

And it turns out, Louis was especially happy while his mom was shooting her latest film, Our Brand Is Crisis, which is based in New Orleans. Sandra adopted Louis from New Orleans in 2010.

"That was part of the prerequisite for me. I said, you've got three locations you can pick from -- not including Puerto Rico and Bolivia -- where I feel happy to have Louis in school, and it was Austin, Los Angeles, or New Orleans," Bullock shares. "New Orleans was number one and that's where we went. He was very happy."

Meanwhile, Bullock recently revealed that she's already taught 5-year-old Louis about racism, sexism, and homophobia in a chat with BET.

"Absolutely, it's an open conversation we have," the Oscar winner said in response to a question about whether she was preparing Louis for prejudice, that, as a person of color, he may need to be aware of. "He fully understands what that means."

"He doesn't understand why people judge each other based on color of the skin, but he knows that they do," she continued, adding, "He also knows there's sexism, he knows there's homophobia."

WATCH: Sandra Bullock's Son Has No Idea His Mom Is an Actress

ET caught up with Bullock at theOur Brand Is Crisis premiere at the Toronto Film Festival in September, where she was coy about her reported boyfriend, handsome 49-year-old model Bryan Randall.

"Who says I have a new boyfriend?" the actress teased. "Everything in my life is great right now."

Watch below!