Swimmingdancer
Bluelight Crew
It would not make you gay to want to have sex with the same gender while on drugs or while sober but it would make you bisexual.
I disagree that most people are somehow inbetween gay and heterosexual or are bisexual. If this were true there would be no point at all in LGBT (lesbians, gays, bisexuals, and trans people) coming out, no fight at all for same gender marriage or rights that heterosexuals have that they take for granted, hate crimes and genocide against bisexual and gay men would not exist, and there would be no stigma associated with being bisexual or gay and a man like you see in various societies and cultures and religions/spiritualities. This is not to say that people can't be bisexual since they can, and bisexuals do make up a sizable percentage of the human population or for LGBT people bisexuals both men, women, and trans people outnumber gay/lesbian men, women, and trans people.
I'm gay and I have been on various drugs and I have never wanted to have sex with the opposite gender while on them. I have never had any desire to have sex with a woman or any women at all even while sober. If you fantasize about having sex with the same gender while you're on drugs or sober then you're not heterosexual. If you were actually heterosexual you wouldn't fantasize or think about having sex with the same gender at all while sober or on drugs.
Not that it's really that important to the OP, but I disagree and most experts on human sexuality disagree. Having sexual thoughts, feelings, attraction or physical arousal to do with members of the same sex doesn't necessarily make you bisexual or gay. Is a guy who gets a blowjob from another guy while in prison automatically bisexual? Is a woman who got a little turned on once by seeing a naked photo of an attractive woman automatically bisexual? "Heterosexual" "bisexual" and "homosexual" are labels invented in the late 1800s to more easily define/communicate sexual behaviours outside of and within the social norm. They now generally define a sexual identity, especially used in the context of "I am bisexual", "he is gay", etc, although they are sometimes used to describe an activity as in "ducks engage in bisexual behaviours" or "homosexual sex". Environment, culture, religion, and social setting play huge roles in the perception, attitudes, and behaviors of sexuality and whether or not a person expresses desires, thoughts or feelings regarding attraction to the same sex, let alone actually engages in any sexual activity with a person of the same sex. It's completely a fallacy of logic to say that if most people were neither 100% heterosexual nor 100% homosexual that there would be no social/cultural/religious stigma attached to any sexual orientation, that makes no sense at all.