"Here I owe you five dollars," Guillermo said and Kimmel replied, "What is this all about?!"
"Is it five dollars or six dollars?" Roberts asked.
"I think it was five, but I'll give you six," Kimmel's sidekick replied.
The actress explained to Kimmel that Guillermo made bets with her sons, Finn, 13, and Henry, 11, on the World Cup. Guillermo had picked Brazil to win, while one of Roberts' boys had chosen France, who won.
"Are you running a child gambling ring?" Kimmel joked and then asked, "Wait, hold on a second, where are you guys hanging out together?"
"We were hanging out at a Taylor Swift concert," Guillermo replied.
As Kimmel and the audience began to laugh, Roberts responded, "the story just gets better and better."