My current guess is that he might've gotten rly bad nerves or been really distressed before a match and decided to use sex as an outlet. Because of it the sexual release, it likely lessened his tension and made him more prone to winning.
This is just my guess since athletes are known to be superstitious, JJK is particularly fastidious and tunnel-visioned on being successful, and it doesnt seem like the jinx is based on anything traumatizing.
My current guess is that he might've gotten rly bad nerves or been really distressed before a match and decided to use sex as an outlet. Because of it the sexual release, it likely lessened his tension and made him more prone to winning.
This is just my guess since athletes are known to be superstitious, JJK is particularly fastidious and tunnel-visioned on being successful, and it doesnt seem like the jinx is based on anything traumatizing.