Tiffani Thiessen's 5-year-old daughter, Harper, snuggled with her newborn brother, Holt, on Friday, July 3

What a sweet big sister! Tiffani Thiessen's family is complete — and beyond adorable! The Saved by the Bell actress shared more photos of her newborn son, Holt, on Friday, July 3.

"My heart could not be more full of love for these two. #weareblessed," Thiessen, 41, captioned via Instagram.

In the snapshot, Thiessen's 5-year-old daughter Harper held her baby brother in her arms as they both took a nap. Holt — already showing off his dark locks — wore a gray onesie and was wrapped in a matching blanket.

Thiessen's husband, actor Brady Smith, also shared a photo of his son from the hospital. "Feeling incredibly grateful & blessed at the moment," he wrote. "#sweetbabyboy."

The Beverly Hills, 90210 alum and Smith, 43, welcomed their second child together on Wednesday, July 1. Thiessen was the guest of honor at an L.A. baby shower in April.

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