No it doesn't
Actually, here you go: https://en.wikipedia.org/wiki/Kinsey_scale
Sexuality is not spectrum Feelings are, what you may Feel you are may change but the the body itself, does not.The yaoi logic behind the straight falling for gay person is this love is so right I must be in love with only you., they are still both men. the reason these types of manga are written is the pop. of gays in real word is small to begin with the chance of meeting another gay male in small sometimes esp. in small towns. It plays into the Romantic nature in all of us. I don't think people can't tell feelings from facts . I wish posters would stop taking these manga as fact, they are not.If you are in any ways familiar with what it takes in real life to have a relationship with a gay male to have sex with a gay male , one would have to be gay prep is no joke, neither is the clean up. This manga is not real some mention it. Know that most posters have little exp. and a lot of feelings. to me you are either gay or you are not.
you know how in alot of yaoi mangas one mc will say hes not gay but only loves him. In real life does that happen.....where a person will be like im not gay but I just love you? like what happens when you break up... will they go back to women or find another man and say the same thing :/