Tiffani Thiessen is pregnant again (much to her firstborn’s delight)

Tifffani Thiessen is pregnant again!

“We are excited to announce the news that we are expecting,� the “White Collar� actress said Thursday on Instagram, posting a picture of her family. “Harper could not be more thrilled to have a sibling and a playmate.�

Harper, 4, is Thiessen’s daughter with actor Brady Smith -- the couple married in July 2005 -- and it appears the little skier is more than eager to be a big sis.

After telling E! News last month that she and Smith were “working on� a second child, the actress revealed the have-a-baby heat she was getting at home.

“My daughter is more pressure than anybody else that I ever get. She wants a sibling so badly,� Thiessen said, adding that Harper didn’t have a preference for a brother or sister.

“Every day is different. It just depends on what kind of mood she’s in, I guess.�

Now that “White Collar� has come to the end of its run, Thiessen will have plenty of time to enjoy being pregnant.

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