d = number of dicks
b = number of balls
v = number of vaginas
t = number of tits
G = (d+b)/(v+t) = gayness ratio

male x female => G = (1+2)/(1+2) = 1 => heterosexual baseline
no women => G = n/0 => gay as fuck
no men => G = 0/n => zero gayness
futa solo => G = (1+2)/(1+2) = 1 => same as vanilla
futa x male => G = (2+4)/(1+2) = 2 => twice as gay as vanilla
futa x female => G = (1+2)/(2+4) = 0.5 => less gay than vanilla
futa x futa => G = (2+4)/(2+4) = 1 => same as vanilla