IN-LINE FOR A PERT BOTTOM
For a workout that targets the backs of the thighs and the bottom more effectively than running or cycling, try 30 minutes of in-line skating. It works the hip muscles and tightens up the gluteus maximus without too much hard work.
ANYTIME, ANY PLACE
Waiting at the bus stop or in the checkout queue at the supermarket can be time well spent if you clench your bottom and hold it for 30 seconds at a time. This will work the gluteus maximus muscles to firm up a flabby bottom and protect the lower spine.