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Exes Gisele B\u00fcndchen<\/a><\/strong> and Tom Brady<\/a><\/strong> are kicking off their son Benjamin Brady<\/strong>‘s birthday celebration with\u00a0heartwarming messages.<\/p>\n The former couple relayed their well-wishes alongside throwback photos of the teen on social media Dec. 8, the day he turned 15.<\/p>\n “Happy birthday to the sweetest and funniest boy on earth,” Gisele wrote on her Instagram Stories. “You have the biggest heart and it’s amazing to see you grow into an incredible young man.”<\/p>\n The supermodel, who is pregnant with her third child<\/a> and first with boyfriend Joaquim Valente<\/strong>, shared pics of herself hugging Benjamin alongside a lake and a pic of the boy fishing. Alongside an image of the two holding a chicken together, the 44-year-old added in Portuguese, “I love you lots.”<\/p>\n On his Instagram<\/a>, Tom led a birthday tribute carousel to Benjamin with a pic of the two with the retired NFL icon’s eldest son John “Jack” Edward Thomas Moynahan<\/strong>, 17\u2014who he shares with ex Bridget Moynahan<\/strong>\u2014at one of Taylor Swift<\/a><\/strong>\u2019s Eras Tour concerts in October.<\/p>\n<\/div>\n