At the weekend he made his debut in Brazil alongside mum and dad, as the Brady-Bundchen family headed south for the marriage between Gisele's twin sister, Patricia, and her groom, Rodrigo Pereira.
The supermodel and her American football star husband flew in to Barra Do Ribeiro for the wedding, which took place at the picturesque Laurentia Vineyard in the country's southernmost state.
In-between caring for her first-born, the 29-year-old beauty assisted her sibling as her maid of honour, while Tom dutifully looked after their son and carried the baby's bag.
The trio made a very stylish addition to the festivities. While Tom chose to wear a classic suit, and his wife looked gorgeous in a layered pink Missoni dress, the couple also dressed Benjamin in a small tuxedo.
It was a particularly important occassion for Gisele's Brazilian relatives. Not only were they celebrating Patricia's nuptials, but it was the first time many had met the little boy, who was born on December 8.
While in her native Brazil, the cover girl revealed to local media sources that she is already taking steps to ensure her son is bilingual.
"I only talk in Portuguese when I'm with him," she revealed. "He is American and will live inside this culture with English as his first language; his dad is American.
"But that doesn't change the fact that he's half Brazilian," she added. "He's not just Brady, he's a Bundchen too."