My dressing has involved partners back when I was younger. Women I dated some really got into it we would even buy lingerie together and the little chicken cutlets were next to give me some boobies. They were just the beginning. My dressing was sexual with both sexes and even some other cross dressers.
Boobs are one of the most feminine things we can have as cross dressers and sharing that experience with others has only served to enhance the good experiences in my dressing life.