If there's one thing we know about Los Angeles Lakers star LeBron James, it's the fact that he's passionate about two things: basketball and family. Combine that two and you'll get to see a rare NSFW reaction from King James himself.

LeBron's wife, Savannah James, showed everyone just that after she posted on her Instagram stories a series of short videos of her husband watching Bronny's game on TV. As a supportive dad, the Lakers forward can be seen intensely “coaching” his eldest son from afar.

While it's hard to see what's happening in the game, LeBron was shocked and frustrated towards the end of the video for an apparent foul–so much so that he blurted out a rather crispy curse word.

Now that's something you won't hear LeBron James say in public. But then again, he's at the comforts of his home. Kudos to Savannah for sharing the clips as well!

For what it's worth, it is not the first time the Lakers leader got angry for his son or his child's team. Recently, he also confronted an announcer for saying Bronny got favorable whistles because he's the son of LeBron. Of course, James did not like that, especially since Bronny is doing his best to carve his own path away from the large shadow of his father.

When LeBron retires, we'll probably see him often coaching his sons during games and dropping the F-bomb from time to time.