If you browse through the internet , you will be amazed to see lots of remedies for both weight reduction, increasing Bust size.
At the end of day one ends up spending huge money and ending being still dissatisfied.
Why not be happy with the body god has gifted you, instead of trying to manipulate it. There are lots of Plastic Surgical procedures and prosthesis
Best and Cheapest without Trying to interfere with Normal Physiology would be Control your diet, eat nutritious food, Exercise( Brisk walking for 30 minutes per day/ Swimming etc). Massage
Try to be happy with your body, love it respect it. If you don't love the way you are then no one will.