Kaley Cuoco is sadly mourning the death of her dog Petey.
The 30-year-old Big Bang Theory star took to Instagram to share the sad news on Thursday, posting throwback photos of herself with her first pet. Cuoco said she got Petey as a 16th birthday gift from her boyfriend at the time.
"Anyone who knows me, knows Petey," Cuoco, a noted animal lover, wrote. "He was basically the first dog I ever had... I was gifted him on my sweet 16, by my bf at the time... I was afraid I would get in trouble so I hid him in my bedroom for 3 days until my parents found out -- they said I had to take care of him if I was to keep him, that he would be mine! I was so excited!!"
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Later, her parents adopted the dog as their own.
"When I moved out of my parents' house at 17, I had plans to take him with me but he had stolen my parents' hearts and they wouldn't let me!" she continued. "Here we are 15 years later. My folks gave him the greatest life and he taught us what it meant to love an adoption pup. I have since named my corporation after him (peteypie inc) and he has brought a lifetime of joy and laughs to our entire family. I know he will now enjoy doggie heaven where there will be an abundance of greenies just for him. This little guy, I will never ever forget... "
Interestingly enough, Cuoco made the sad announcement on New Year's Eve, which would have been her and her ex Ryan Sweeting's two-year wedding anniversary. The two announced their split on Sept. 25.
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Late last month, the actress thanked her family for supporting her through her drama-filled year.
"Through all the craziness, drama, gossip, tears, and life that has happened this last year, seeing these people who know me quite well, made me oh so very happy," she Instagrammed alongside a black-and-white throwback photo of her family.
Still, 2016 is already looking up for the actress. She's reportedly moved on and started dating Arrow star Paul Blackthorne, who's also an animal activist.