Carnality, or that what you derive pleasure from is not a hindrance. Iron clad sin is a mere illusion, full of variables involving loopholes to make vile acts acceptable under given circumstances.
Personally, as a studier of classical and modern philosophy, your inner judgment of morality is not a new issue. Nor should it scare you. However, fighting what is in your nature can lead you on a bitter, self destructive path. You are better off being open (or as open as you desire to be). After all, many of the people here share your same 'affliction'. Some of us understand your moral plight, others do not.
You must ask yourself as a child of God that if he did not mean for you to be the person you are even with your perceived faults, why did he make you the way you are?