Our expert says:
The penis has its own generous supply of nerves and bloodvessels. A vast array of physical and psychological stimulation can result in an erection response. It is completely possible that a man's penis can have an erection response during a physical examination from the stimulation of touch, notwithstanding the gender of the person examining them.
To answer your question "can a man get turned on by another man??????"; the answer is yes a man can.
You must not confuse the two seperate issues that make up your posting though. So if you are asking whether the fact that your husband had an erection response to his physical examination is conclusive evidence that he is attracted to men and possibly homosexual? The answer would be no.
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