Piquet and Verstappen have been dating since 2021, and naturally, Verstappen's partner was keen to celebrate the occasion with a public social media post.
In the post shared on her Instagram story, Piquet revealed that Verstappen's nickname is 'Mashy', hinting at an exciting year ahead for the F1 champion in his birthday post.
Posting a picture of herself and Verstappen enjoying a romantic moment, Piquet captioned the image: "Happy Birthday Mashy. To a very special year ahead."
Piquet later followed this up with another picture of herself and Verstappen, this time, though, Piquet's daughter Penelope also featured in the image.
This time, the Brazilian's caption of choice: "I love us."