Baby’s first F-bomb.

Paris Hilton couldn’t resist laughing at her son Phoenix’s repeated use of the word “f–k” in a video shared to TikTok Tuesday.

In the clip, the mom of two appeared to be having dinner with the toddler when he surprised her by uttering the curse word.

“When you think you’re capturing a sweet moment and then…,” Hilton wrote at the top of the video.

Hilton, 44, seemingly asked her husband, Carter Reum, “Did you just hear that?” as she broke into laughter. Reum then responded, “It’s on video?”

The reality TV star then asked her son, “What did you just say?” Phoenix then dropped another F-bomb.

She continued chuckling at her son, confessing that she “could not hold it together.”

When the 2-year-old let out another F-bomb, Hilton stared at her son with her mouth open in shock.

She wrote across the clip, “How could you not laugh at this?!”

She added in the video’s caption, “I know I shouldn’t laugh but I can’t help it! 🫣 Toddlers are actually little comedians 😂.”

Hilton and Reum announced Phoenix’s arrival in January 2023 after welcoming the little one via surrogate.

“You are already loved beyond words 💙,” the “Stars Are Blind” singer posted on Instagram at the time.

The couple are also parents to daughter London, 1, whom they welcomed in November 2023.