Nurse's Milking

Granted I've not dealt with biology since my high-school days, but I'm certain that male protag-kun ejaculating into a condom might be a more safe way of collecting semen for 'testing purposes', as opposed to the method demonstrated in this story by Nurse Suzune-san.

The More You Know.

And that folks is how you contaminate the test results to force more tests.

If she was meant to be as attractive as she's drawn, she wouldn't have to make any contact with me for me to bust a nut. I'd ogle the hell out of her, tho'.

Semen...Testing? That's interesting.
And of course, the most efficient way is to have the nurse extract it for him. So, hands, breasts and maybe even the mouth might be fine but...Extracting it via her vagina would just contaminate the results, no?
I'm sure more...re-testing will be required.

ooh, I forgot about this
I wanted to buy a tapestry of her from Melonbooks but it's sold out already
https://twitter.com/comic_bavel/status/1273909574441943041