Just when you thought it was safe to ignore Olympic synchronized swimming ...
If you Google them (their last name is "Feres"), you can also find a video on YouTube which is actually kind of creepy. Remember, they are sisters.
But still - you'll be wanting to stay up until 3 a.m. in order to watch synchronized swimming!
[Update: Okay, so they're not on the Olympic team. Oh well. Go back to ignoring the Olympics.]