The Transformers actress, 29, uploaded a beautiful picture of the one-year-old to her Instagram account alongside the caption: "Bodhi: Stunner. Clown. Unicorn."
Fans were quick to agree with her use of the word 'stunner' with thousands leaving compliments on her page, saying little Bodhi is just as gorgeous as his famous mum.
Megan gave birth to Bodhi in February 2014. He's her second child with estranged husband Brian Austin Green. They are also parents to son Noah Shannon, two.
Megan and Brian are thought to have quietly split in June, after 11 years together including five years of marriage.
Neither has publicly commented but a source told People at the time: "They will always love each other very much and are devoted to their kids. Anything could happen in the future, but for now they've decided it's best to take some time apart."
Megan returned to Instagram three weeks ago after avoiding the social media site since April. Alongside a black and white photo of herself, she told fans: "Hi. I'm still here, I just continue to have an angsty relationship with social media. But what better way to express my apprehension than with a selfie. This time in black n white!"