I agree with the majority of the contributors...you shouldn't feel ashamed your sexuality no matter of the source. I recognize that the origins of your sexuality may be based on sexual abuse, however once you have worked through any negative feeling related to the abuse, there is nothing wrong with accepting and enjoying homosexual-related activities. I can't speak for all women, but am very close to a woman who was raped as a teen, yet as an adult is still able to enjoy the pleasures of sexual intercourse.

I hope you can find a way to separate the two aspects...heal one and enjoy the other.