In a photo posted to Instagram earlier today (1 April), Tom is seen laying on his back on the floor while Buzz rests on his chest.
A topless Tom, 28, then flexes his muscles for the snap, as an adorable Buzz cuddles up to his dad - aww!
Captioning the snap, 'All About You' singer Tom, who welcomed baby Buzz with wife Giovanna on 13 March, said: "Tummy time with Dad."
Two weeks ago, Tom and Giovanna unveiled a very sweet video posted to YouTube, which documented nine months of Giovanna's pregnancy. The video was also the first time that they unveiled Buzz to the world.
Little Buzz has had all his family around him, including his uncle, TOWIE star Mario Falcone.
Just last week Buzz was discharged from hospital after being admitted nine days after birth (22 March). Although Tom and Giovanna didn't explain the reason why he was in hospital, they assured fans that he was fine.
Watch Tom and Giovanna introduce baby Buzz:
Tom and Giovanna aren't alone! More stars who've welcomed babies in 2014 below:
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