Paparazzi reporters have so far pinpointed two girls who they think are dating the swimming ace, Michael Phelps. The first is his hot teammate Amanda Beard and the second is charming British model Lily Donaldson.

American swimmer, Amanda Beard, held the Olympic record for women's 200m breaststroke, but so far has not pocketed a gold in these Games.

21-year-old Lily Donaldson is ranked as one of the top 8 models in the fashion world. She even replaced British supermodel Kate Moss in 2007 as the "younger face" of Burberry, reported ANI. 

US swimmer Amanda Beard competes during the women's 200m breaststroke swimming heats at the National Aquatics Center during the 2008 Beijing Olympic Games in Beijing on August 13, 2008. [Agencies]