Johnny Galecki, 44, is known for his role as Leonard Hofstadter in the hit comedy sitcom the Big Bang Theory. The CBS show wrapped up its 12th season last May 16 giving ample time for Galecki to be ready for his new real-life role as a father.

The actor is having a baby boy with his 21-year-old girlfriend, Alaina Meyer. They announced the big news last May 3. How else but through Instagram. The pair wrote “We are absolutely over the moon to announce that we will soon be welcoming a little one into this crazy and wonderful world. “ The announcement came with a photo of the couple in a tight embrace.

The couple held a gender reveal party where it was announced that they’re expecting a beautiful baby boy. The couple took to social media to post photos of the unforgettable event.

The outdoor party was lined with pink and blue decor along with treats and a lot of blue paint. In photos, we see the couple smothered with splashes of paint while in their overalls.

Galecki and Meyers celebrated with a smooch while they were still smeared in the blue paint. Meyers uploaded photos of them on her Instagram stories, captioning one photo “To all those who voted boy you were right!”

Although earlier this month the sitcom actor admitted that he was hoping a girl, he wasn’t at all disappointed. Galecki wrote “A day I’ll never forget.” along with the photo of the parents-to-be sharing a sweet smooch after the exciting reveal.