Sins

[Nope]

Drich, I want to make certain that I understand you correctly. If an unmarried person thinks about having sex with anyone then they have committed a sin?

That would be the sin of lust.
http://www.merriam-webster.com/dicti

In the story about the trucker, you stated that you decided at that moment you weren't gay. Didn't you know before which sex you found attractive? How old were you?

That was my final exam. I was tested, and aced the herto exam.

I was probably very early 20's

Maybe my confusion is because you seem to have needed a test to determine your sexuality? I have always known that I liked men and to a lesser extent women. There would be no need for a test to prove my sexuality.

All the incident at the truck stop shows is that you aren't interested in selling sex to a very large man. It doesn't prove anything about your sexuality. Being gay doesn't mean you want to have sex with every available man. If you say you aren't gay, I believe you but you haven't answered the question about when you decided to be heterosexual.