When you ejaculate and pass a kidney stone at the same time.

when you're hungover as shit after a spending a night drunk as a skunk

The Art of letting your Girlfriend suck your balls and then she chews on them and you subsequently fly kick her causing her to spit your balls out in small chunks

When you nut while having a kidney stone

When a male is having sexual intercourse with someone and he passes a kidney stone while ejaculating.