From Merriam-Webster
"Main Entry:
1ho·mo·sex·u·al Pronunciation: \ˌhō-mə-ˈsek-sh(ə-)wəl, -ˈsek-shəl\
Function:
adjective
Date: 1892
1 : of, relating to, or characterized by a tendency to direct sexual desire toward another of the same
sex
2 : of, relating to, or involving
sexual intercourse between persons of the same sex"
Yes, someone can be 100% straight according to the textbook definition of homosexual. I have never had a single sexual feeling towards another male. Looking at a penis and being impressed by it's size does not equate to homosexuality. Looking at a penis, being impressed by it's size,
and then wanting to perform some sort of sexual act with said man/penis is homosexual.
Why does this even get brought up? If you feel that you're 1% gay, then fine. If you feel that you're 0% gay, also fine. There's surely no need to ever question whether someone is "100% straight" or not. That's like me arguing that, even though you have clearly stated that you hate marmalade, you still must have at least some small desire to eat it. Nonsense.
Why can't there be a bi-sexual option on this site? Why do people have to come up with a fraction for their sexual preference? It's silly. If you get blow jobs from men and like it, then you're not "1% gay", you're bi-sexual (that is of course assuming that you also like sex with women).