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Note to self: Never trust Jim Parsons with a secret.

It all started when the Big Bang Theory star, 45, shared a series of Instagram photos, documenting the moment he ruined Kaley Cuoco’s 33rd birthday celebration.

You see, the cast and crew of BBT ordered a special cake for the actress, complete with rainbow sprinkles and a personalized message. In a total amateur move, Parsons posted a photo of the surprise on Instagram and wrote, “Almost time, @kaleycuoco…shhhhh……” Subtle.

It didn’t take long for Cuoco to catch wind of the “surprise.” So, naturally, Parsons followed up with a pic to confirm he did, in fact, ruin her birthday.

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