If you think about it, it’s pretty gay to say no homo. A straight person wouldn’t need to say no homo, because they have enough self confidence that they’re heterosexual.

An example of this is kissing the same gender. A straight guy would be able to comfortably do this because he’s confident in his sexuality. On the other hand, a guy with a fragile sexuality would need to say no homo because they’re scared that they’ll turn gay. If this change and fear is that simple, then they must already have homosexual tendencies.

Therefore, saying no homo is gay. A straight guy doesn’t say no homo.