"Hey @zacefron I saw her first... She is my girl. Proud of you Simone! You are phenomenal in whole world and special. You made history. Love u." Brazilian gymnast Arthur Nory Mariano jokes about his love rival Zac Efron, who jetted off to Rio de Janeiro, Brazil earlier this week (beg15Aug16) to hang out with multi-medallist Simone Biles at the Olympics. The U.S. gymnast has become friendly with the actor after revealing she has a huge crush on him.