>>11584350i have a higher iq solution to this.
the statistical distribution of penises among all men is not the same as the statistical distribution of penises a given woman you encounter will have encountered.
think about it, clarify whatever level you want as the chad lets say 5%. 5% of men are chads, does not mean that 5% of the men a woman has fucked will be chads.
if you're fucking a good looking girl in the western world she will be actively selecting for things such as height looks physically good genetics which will likely correlate to penis size, at the least confidence will. there is a snowball effect too i.e guy is hung fucks around gets more confident fucks even more etc etc.
Additionally add the factors that girls talk and this increases said hung men to get more pussy.
Additionally consider the inverse implications, that a guy with a small penis is unlikely to be equivalently represented in the casual sex market.
then finally she watches the same porn you do, thus has observed a humongous amount of statistically outlier penises to further remove her experience to the statistical distribution in men.