May 28, - Semen clots almost immediately after ejaculation, forming a sticky, jelly-like liquid. It will liquefy again in 5 to 40 minutes. It is quite normal for semen to form jelly-like globules and this does not indicate any health or fertility problem. Mar 27, - Not complaining, I like it, it turns me on even more. Do guys say Tracy Moore: So why do all guys say “I'm gonna cum” right before they cum?