why does semen become less viscous overtime after you ejaculate

Question

For clarification I’m talking 20/30 seconds it goes from floppy to pretty runny.

In: Biology

Answer 1

“After ejaculation, the latter part of the ejaculated semen coagulates immediately,[10] forming globules,[11] while the earlier part of the ejaculate typically does not.[12] After a period typically ranging from 15 – 30 minutes, prostate-specific antigen present in the semen causes the decoagulation of the seminal coagulum.[13] It is postulated that the initial clotting helps keep the semen in the vagina,[10] while liquefaction frees the sperm to make their journey to the ova.[10]”

From Wikipedia^
It says 15-30 minutes but I’ve also noticed this happen on a shorter timescale