>>60546869Generally sexual fetishes develop as the brain's response to anxiety, insecurity, or trauma.
For example, you're anxious about your dick size and one time your girlfriend cheated on you, so your brain develops a cuckold fetish, and now it's okay that your dick is small and your girlfriend cheated on you, because it turns you on.
Similarly, the gooner fetish is the brain's response to anxiety about watching too much porn. Your brain tells you that actually, it's a good thing that you watch tons of increasingly degenerate porn, because watching yourself become worse turns you on.