The 36-year-old tennis player is "back at it" and hitting the gym after she and Enrique Iglesias welcomed twins, a boy, Nicholas, and a girl, Lucy, in mid-December. The new mom took to Instagram to share a clip of herself working out, while the couple's German Shepherd, Max, laid by her side.
It seems as if Max is a regular gym buddy for Kournikova. She's previously shared videos of her workouts on social media where the canine adorably interrupts her and also keeps her company.
Kournikova and the Spanish singer, who have been together since 2001, kept their pregnancy under wraps.
“Their family and friends didn’t even know,” a source told ET earlier this month. “They had been preparing for a while to have kids and are over the moon.”
“They spent a lot of time and money on their home to baby proof it,” the source added.
The lovebirds, who are notoriously private about their personal life, individually shared the first images of their new bundles of joy on Instagram on Jan. 16. The singer and tennis star each cuddled up with one of their babies, captioning the pics, "My sunshine."
Last week, the two were then spotted having some fun in the sun, with the blonde beauty even jamming out to Iglesias' latest single, "El Baño."