If a man masterbates one night (doesn't pee that night) and then pees only ONCE the next day then has sex later on during the day will there be sperm in his "precum" P.S other professionals say that peeing after his last ejaculation kills the leftover sperm in the urethra
Hi Tman,
It doesn't so much as kill the sperm, right away anyways, as wash them out.
If you urinate after ejaculation, just once, it will flush the urethra and any precum afterwards is considered NOT to contain sperm.