Tone your glutes with this butt-kicking exercise.

1. Lying on one side, prop yourself up on your forearm or hand with knees lined up at 90 degrees so that the top knee covers the bottom knee (shown). Keep the abs pulled in.
2. Raise the upper leg, knee still bent, with top foot in a flexed or pointed position. (The ankle should be higher than the knee).
3. Complete the movement of lifting and lowering your leg between the two above positions in the sequence below.

Suggested sequence:

1. 20 double count (take two counts to perform the movement)
2. 20 single count
3. 20 fast
4. 10 up, up, hold
5. 10 single count kick out (raise the leg, then kick it out in front while at the top position as shown in the last picture)
6. 10 single count kick out/in/up/down
7. 20 single count
8. Hold three seconds

Source: The Nalini Method