Exactly right! There is no better feeling in the world than slipping your hard dick into a freshly loaded pussy and fucking it until you cum. I've fucked my wife at least a hundred times after some lucky dude she has picked has had the pleasure of nutting in her well fucked, married cunt. Then I do her. It never takes long, maybe 20 strokes until I blow my load up her pussy. Heaven!
Sperm can survive inside a woman for up to a 5 days. "Killer Sperm" doesn't exist . However sperm form different men will try to block or slow down competitors. While increasing the speed and mobility of sperm form the same man. So if you as a guy are worried about other men beating you to the egg. Remember to cum inside as often as you can to slow down those other guys she might be seeing