Turner Syndrome Support Group
Turner syndrome encompasses a number of chromosomal abnormalities, of which monosomy X, is the most common. It occurs in 1 out of every 2,500 female births. Instead of the normal XX sex chromosomes for a female, only one X chromosome is present and fully functional. In Turner syndrome, female sexual characteristics are present but underdeveloped.

I also have TS and personaly i can say that i became interested in men when i was 25 years old.
I know that I've personally gone through periods of desire for other women, even from before I was your daughters age. Give your daughter time to discover who she is and what she wants. :)
Best of luck!