Holly and Kaylee Larson both compete in the breaststroke

May 30, 2012 | 6:43 p.m. CDT

Holly and Kaylee Larson, siblings, pose outside of the Albert-Oakland Family Aquatic Center on Wednesday.

Name: Holly Larson
Age: 16
School: Hickman High School, junior
Event: Breaststroke

Name: Kaylee Larson
Age: 15 years old
School: Hickman High School, sophomore
Event: Breaststroke

“[Sometimes] my sister dances on the pool deck,” Kaylee Larson said. “It makes people laugh."