Amy Smart: Four Pets Is a ‘Full House’

Amanda Schwab/Startraks

updated 04/11/2012 AT 4:00 PM ET

originally published 04/12/2012 AT 9:00 AM ET

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Though wedded life has come easily to Amy Smart, it’s presented challenges to her pets, which include two 16-year-old cats and a 9-year-old rescue dog.

“It was definitely an adjustment bringing my pets in with Slim,” Smart tells PEOPLE of life with husband Carter Oosterhouse’s 4-year-old bulldog. “My cats, they’ve grown up with my dog, but [Carter’s] dog didn’t really ever know cats, was never around cats.”

Lucky for Slim, Smart’s pair of felines have been nothing but hospitable during the adjustment process.

“My cats sort of trained him how to be with them,” she says. “Now it’s fine, everyone gets along all right. It’s fun seeing them interact.”