Star athletes tend to be more aggressive. More argessive people tend to have higher testosterone. People with higher testosterone tend to be more attracted to women...
I would say that star athletes tend to be more competitive, rather than aggressive.
Sorry, I have to disagree with you about testosterone. To the best of my knowledge, there are no scientific studies indicating that either star male athletes have higher testosterone levels than average men or that star female athletes have higher testosterone levels than average women, or that testosterone levels in lesbians are higher than in heterosexual women. If you know of any, please let me know.
One common, though not invariable, fact about lesbians is this: they detest men. Becoming a lesbian is often triggered by a dysfunctional interpersonal relationship between the female and key male figure in her life: father, brother, male lover, etc. In general, lesbianism, in contrast to male homosexuality, is much more of a free and willing choice; in fact, many lesbians will move from heterosexual to homosexual relations and vice versa. The two pathologies (yes, I said it!) - male homosexuality and lesbianism - are not symmetrical to each other in that regard. Of course, leftist media will never tell you this; you would have to get it from politically incorrect psychiatry research.
Perhaps an unusual number female athletes tend to pursue athletics vigorously as youngsters as an alternative to normal interrelating with men, which might account for the unusual percentage of lesbians in the higher echelons of women's sports.