This will make you do a double-take.
Gisele Bundchen and her twin sister Patricia -- yes, she's a twin! -- celebrated their 34th birthday together on a beautiful beach July 20. The supermodel sported a bikini as she and her sister blew out the candles on their birthday cake:
Gisele wrote alongside the photo, "Thank you to everyone for the love and birthday wishes. I feel so blessed. #grateful".
Mrs. Tom Brady is clearly enjoying her tropical vacation, as she shared this action shot on her Instagram account July 18:
Happy birthday to Gisele and Patricia Bundchen!