I often hear from the ladies "I run to stay slim" but that's not going to get you the body you want. If you want to look defined and with curves at the right places (buttocks, chest), you have to lift weights.
Here is a great example of someone who takes her workouts seriously:
http://www.bodybuilding.com/images/2016/february/ashleyhorner-2_5_2015.jpg
Good form, too, FWIW.