How to get big breast within a week

How to enlarge and tighten the breast?
In fact there are different techniques which can be used to increase the size of the breast as well as tighten it. First of all, there are some exercises that might helpful such push-up exercise by standing in front of the wall and moving the foot and body a little back and then extending the hands on the wall and starting the exercise, Bench press using extra weight, Cobra exercise and Superman Workout. Secondly, there are some other ways to increase breast size medically, including Silicone implants, Botox and Filler injections.

Are there creams that may help tighten the breast ?
There are some creams available in the market, but we do not recommend their use, as it is not guaranteed that they will have an appropriate effect, due to the lack of research on this subject, including:
1. IsoSensuals Enhance Cream
2. Bella Natural Herbal Cream 

Causes of small breast:
1. Genetics 
2. Familial issue
3. Low body weight
4. Thyroid disease
5. Hormonal changes
6. Others