No-unfortunately you cannot change your genetic body shape-if you are an apple, hourglass, or pear-it is what it is.
The more overweight you are, however, the more distorted your body shape is. If you are an apple by nature and have a large upper body and a small lower body, the fatter you are, the more disproportionate that ratio is going to be. If you get really fit, and down to a nice weight and fitness level-it isn't going to be nearly as noticable. Extra weight exaggerates whateer shape we are.
I am a combination between an hourglass and a pear shape...and no matter what shape you are, the grass always seems greener on the other side.
While you might envy the waistline of the pear or hourglass shape, all of the pear shapes with our heavier lower halves-most of us envy the fact that apples usually have GREAT legs!
I have known a lot of apple women, and I have always noticed things that I think they look good in. Maybe you can try some of these clothing options, and see what you think:
~V-neck tops: apple figures usually have nice cleavage, too. A v-neck shape softens and elongates the neckline, making it appear slimmer, while accentuating any cleavage.
~Shorts and shorter length skirts: apples usually have great, muscular legs-especially if they exercise.
What would you think of the following outfit-a black v-neck top, a denim shorter skirt, black tights, and cute black shoes like Mary Janes? It won't make you appear to be hourglass...but it would accentuate the pretty physical attributes of the apple shape-the legs and cleavage area.
I think sometimes that your best bet with clothing, hair, makeup, etc. is to accentuate the POSITIVE...rather than focusing on changing the negative.