* First of all try to understand the fact that breasts come under different sizes and shapes, just like penis. There is no common or perfect shape or size. Understanding the human thing in her is the biggest thing.
* Compliment her breasts. Keep doing that. Make her feel her comfortable and happy with her size and shape.
* Love her things. Make her know that you are very much interested in her imperfections. She will fall in love with you.
* Tease her breasts before you do anything. Those little teases will make her horny for real.
* Don’t rush into them. Start things gently and smoothly.