Only thing I'd change is cut out the whole testicle pain followed by a visit to the doctor as a premise for "measuring my cum". And replace it with something like
: PC has just recovered from covid but reports getting chronic mild cramps all over his body. Marge is an anti-vaxxer and "read something on the internet" about a natural alternative approach to post-covid therapy, which among other things involves regular orgasms and monitoring semen production for males>>cue rest of the story.
Hopefully that example demonstrates how you can write an engaging story without elaborating/explaining every aspect of it. No need to explain why Marge is an anti-vaxxer or why she fell out with the landlord, for example.