Barron Trump had a sweet moment with his half-sisters, Ivanka Trump and Tiffany Trump, following their dad, Donald Trump's inauguration at the US Capitol in Washington D.C. on Monday. The 18-year-old NYU-Stern student smiled during a playful moment with his siblings while the pair posed for a photo.

Appearing on the main stage to engage in a formal waltz, Trump wore a custom black and white Givenchy gown that served as a recreation of the same 1954 haute couture silhouette that Hubert de Givenchy created for Audrey Hepburn,

The family members posed for photos before walking to the Capitol rotunda to see President Trump be sworn in as the 47th POTUS.

Nearly every member of President Donald Trump’s family circle was in attendance for the ceremonies and events around his inauguration as 47th president of the United States, and that includes his in-laws.

Barron Trump hilariously crashed a group photo with Ivanka Trump, Tiffany Trump, Lara Trump and Michael Boulos moments before his dad, Donald Trump was sworn in as the 47th President of the United States on Jan.

The photobomb by Barron added a personal and light-hearted touch to the historic occasion, providing a memorable moment for the Trump family and viewers alike.