"We've done it all together," Amber Tramontana says of her twin sister Autum Shaw Joelle Goldstein ... of each other on Oct. 29 — their 33rd birthday. "This is our testimony," says Autum ...

The three-time Olympic medalist, Jade Carey, recently shared her birthday wishes for her sister, Alexsis Carey Lee, through her Instagram story, which featured them wearing the same outfits.