The formula as follows proves why futa can be more straight than you think.
There are 3 prominent sexual attributes that determine something's spot on the gay spectrum. Body, breasts, genitalia.
A man usually has all 3 attributes in their respective male versions, and vice versa for women.
We can assume that these attributes are worth ⅓ of a man's/woman's/futa's/trap's gay index.
A man being 1 (⅓ + ⅓ + ⅓), and a woman being -1 (-⅓ + -⅓ + -⅓).
Futa, having female breasts, female body type, female genitalia, and male genitalia, being -⅓ + -⅓ + -⅓ + ⅓ = -⅔, only ⅓ away from a full female.
A ladyboy, having female body type, female breasts, and male genitalia, being -⅓ + -⅓ + ⅓ = -⅓
A trap (there's a difference), having female body type, male breasts, and make genitalia, being -⅓ + ⅓ + ⅓ = ⅓
We have to determine a threshold to determine whether or not something is gay.
It is clear that a man on man (2) is a peak of gay, the highest or lowest rating one can reach when it comes to basic 2 person intercourse.
It is clear that a woman on woman (-2) is another peak of gay, despite people calling it lesbian.
A man on woman (0) is the absolute for straight. So, one can infer that the closer to 0, the more straight, or less gay. And, the higher an absolute value, the more gay/lesbian, right?
Now, here's the most important part of this theory, as having to do with the observer of the porn, rather than the sexual matter. What would be less gay? A man watching two guys fucking (2), or a man watching two women fucking (-2)? Of course, it would be the lesbo porn, since it has nothing relating to the sex of the observer, while the other gay porn does. The same applies to women. A woman watching two men fucking (2) is less lesbian (gay) than a woman watching two women fucking (-2).
So, since there are no girls on the internet, we know the lower a number, the less gay it is, according to these criteria. At last, we go back to futa and trap porn.
A futa fucking a woman would have a gay index of -1⅔
A futa fucking another futa would have a gay index of -1⅓
A ladyboy fucking a woman would have a gay index of -1⅓
A futa fucking a ladyboy would have a gay index of -1
A ladyboy fucking a ladyboy would have a gay index of -⅔
A futa fucking a trap would have a gay index of -⅓
A trap fucking a trap would have a gay index of 0, the same as that of a man and woman fornicating.
Any other variation than these, concerning futa, traps, and ladyboys, would be gay, since anything of greater value than 0 is gay.
There you go. I had to spend near half an hour typing this to make you understand the basic fundamentals of the homosexuality of futa, traps, and ladyboys, and proving that they are not necessarily gay.
Now, go fap to more of your borderline gay porn of a man and woman, homo.