Kids are usually quite adept at the butterfly stretch, which works the inner thighs and is also sometimes known as the lotus position. In a seated position, place the soles of the feet together and hold them with the hands. Elbows can be between the legs (as shown) or resting on the knees. Gently press the knees down to increase the stretch. For a variation, bend forward from the upper back and reach forehead toward feet.