The one on the right has perfectly normal Irish features and hair texture. With a makeover, she could be very attractive. But "as the mind thinketh"....
And that's why God said, "Be ye transformed by the renewing of your mind." Recent brain studies in the study of stroke and other brain injuries have found that people's brains build cells in areas that they think about and practice frequently, such as playing a musical instrument or re-learning a motor skill after a brain injury. It's not a stretch to believe that repeatedly engaging in gay sex will lead to a gender-disordered outlook and appearance.
By the same token, de-emphasizing a behavior and growing brain cells (very slowly) in other directions could ostensibly "renew one's mind."
And thinking could stimulate hormone activity.