Most Helpful Guy
You can use makeup. (:
All you need is some bronzer or like two shades of powder one darker one lighter
Put on your bra (a push-up is great for this situation) and, if possible, get dressed. Protect the top edge of your shirt or dress by tucking in a facial tissue or even a little toilet paper.
Apply the darker color (bronzer or powder) in the area down the middle of your chest, between your breasts. Blend the color upward and outward, creating a V-shape and along the natural curve of the breast.
Take a lighter color of face powder or eye shadow, such as white or light gold, and put on the top half of your breasts. Don't use too much, and avoid powders that are too shimmery. Blend well with a makeup sponge.
Check in the mirror and see if your breasts look ample enough. If not, add more dark color in the center to build and deepen the color. However, when in doubt, go with less makeup enhancement rather than more. Good luck and have a great date.