Testosterone does lead to the development of body hair in those who have a genetic tendency for body hair.
Blacks tend to lack the hair follicles on their torsos.
I suspect that the need for more hair in the northern climates drove the adaptation of whites to have more torso hair. Now with this new researching pointing at neanderthal DNA being found in all but those of direct African decent it may actually be a hang over from Neanderthal.
As Pix pointed out, medical changes in the levels of estrogen to testosterone does not change sexual orientation in those who undergo gender change.
A more recent study points at genetic and other environmental factors in determining your sexual orientation.
http://www.scientistlive.com/European-Sc...ied/20670/
10 men in 2 years is not a large sampling of the population. If I used the 8 men who have been with in 20+ years then I would have to submit that gay males have larger than average endowments and tend to be taller and more muscular than straight males.
Why? Because out of the 8 males I have been with, 6 of them were over 6'2" (taller than me) worked out regularly, and tended to have much machismo (were very masculine).
As for their endowments being larger than average, I strike it up to the personality types that I am drawn to. Their personalities were, um lets say 'more confident' (Actually they had egos as large as planets) I think in part their 'confidence' was an expression of how they perceived themselves due to what was hanging 'down yonder'.
My experiences thus my judgment of what 'gay' is is based more on my personal tastes and what I am attracted to. I suspect that in this case your personal tastes in partners is what affects your perceptions of what 'gay men' are like.
It is possible that both physical and personality characteristics you are attracted to are in part affected by what is 'down yonder' and how their perceive themselves.
Understand, we males are dominated by our own endowments. We are
programed from early on that a larger package makes you 'more of a man' and that if you have less you are less of a man. Our peers and society has a lot of myths passed off as 'truth' regarding sex organs. I call them 'myth-conceptions' a form of misconception.
On average (meaning taking a random sampling) comparing straight and gay males we find that there are no physical differences (outward, brain-wise there may be).
Underdeveloped testes is fairly high in the male population (regardless of sexual orientation) Many males don't fully develop until their very late teens early 20's.
While we set the average age of male development at or around age 20 Its really a sliding scale of between 18 and 25 with more than a few ending a year or so earlier and a few ending later on in life.