A Catalano Complex refers to the high likelihood that consensual sexual actions have
taken place or will take place at least once between too siblings, provided that:
Both siblings are considered highly
attractive by the majority of their peers, and:
The age difference between the siblings is relatively
small.
The strength of the Catalano Complex between
two siblings has a positive correlation with the siblings'
average attractiveness and has a negative correlation with their difference in age. This is due to the following reasons:
There would likely be less sexual attraction between the siblings if one or both were generally considered
unattractive, and:
The larger the age difference, the less likely it is for both siblings to develop sexual attraction for each other at the
same
time. Also, the larger the age difference, the less likely it is for both siblings to feel comfortable with the
sexual relations in question.
Person 1, looking at a hot girl talking to her equally
hot twin brother: "Damn, they definitely have a Catalano
Complex."
Person 2, in response: "Hell yeah, the incestual probability between them is high
as fuck."