She has proven several times that she and her husband are not yet expecting a baby together, but Big Bang Theory actress Kaley Cuoco may still be trying to get some practice at motherhood anyway.

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Cuoco posted a photo to her Instagram page Dec. 17 to celebrate her makeup artist and friend Jamie Greenberg becoming a mom by posing for a bunch of fun and silly pics with her friend's new son, Simon-and she appeared to be enjoying every minute of holding the new baby in her arms.

"I felt it was appropriate to make every face imaginable while finally holding the one and only #simongreenberg. @jamiemakeupgreenberg I love you and I love this baby so much, I might burst! #auntieforlife," Cuoco captioned the photo of herself holding the infant, where she makes a myriad of faces for the camera.

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Naturally, the photo started off some comments from fans who were wondering if she was beginning to practice for her own day as a mom, whenever it would potentially come.

"hahahaha how else is she going to learn?" one fan commented.

While Cuoco isn't pregnant, she has broached the subject of babies with her husband of just under a year several times, with her most recently addressing talk about her possibly planning for a baby in September, where she said she needed to practice not losing her dog before she could be counted on to care for a child.

"We [want to have kids', we can't wait" she told Ellen DeGeneres. "We actually just rescused another dog, everyone that loves me knows I'm a big dog lover so I just got a really small one, a little rescue, her name's Ruby. And we do want to have kids, but I'm a little...I've lost this dog in the backyard so many times that I feel like I have to practice not losing her, so I don't actually lose my child."

"That's what I'm basing it on, because she's pretty white and noticeable, so I keep thinking if I can't find her..." she added.

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Kaley Cuoco, Ryan sweeting