PHOTO: Hilary Duff’s Son Photobombs Her Dog

Hilary Duff’s son Luca and her dog Dubois

Courtesy of Hillary Duff

11/03/2013 AT 1:30 PM ET

We spy with our little eyes … something particularly adorable.

And we’re not just referring to Hilary Duff’s Bernese mountain dog Dubois.

In a snapshot she posted Sunday, Duff’s son, Luca, 19 months, photobombs this otherwise canine-focused shot of her house (sans the rest of her puppy pack).

“I spy a little luca,” she writes on Twitter.

As for Luca, he might find himself with a little brother or sister in the future.

If I had another boy, I would be happy, but I would like to try for a girl,” Duff, 26, told reporters last month. “And I m not sure that I want to have three kids.”

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