Charles Leclerc dodged a team order by passing his number 1 team mate Sebastian Vettel in Bahrain.
Just before mounting the overtake of the sister Ferrari, the 21-year-old dubbed "golden boy" by the Italian press said on the radio: "Guys, I'm quicker".
His engineer replied that he should wait at least two laps.
"Then on the next straight I had the opportunity to go for it, so I went for it," said Monaco-born Leclerc.
"It's always a tricky situation when you fight your team mate because the risks are very high," he said.
"They warn you before the race to please be careful with your team mate, but I had the opportunity and I didn't hesitate."