pretty woman doing crunches on the green grass

abdominal athlete athletic attractive beautiful beauty body build building care caucasian control crunch crunches effort energy exercise exercises exercising exterior female feminine figure fit fitness girl girls grass gym gymnastics hard health healthy herb horizon lawn lifestyle lose loss lying muscular outdoor outdoors outside people person side sit situps sky slender slim sport sports sportswoman sportswomen stomach thin training ups waist weight weightloss wellness white woman workout young