Quote Originally Posted by point
I guess (but only guess) that with some very bad luck that could be true, but most likely it is just an urban legend. Sperm cells can stay able to connect into the egg cell for a few days, at least inside the woman. I really don't know about surviving on the floor. And maybe a quick movement from mouth to vagina wouldn't still be deadly for them.
Similar to Miss Duece's scenario about the girl to guy, he may trace the sperms off from his fingers, and put it in his mouth right away, instead of licking it off the floor.

It is also possible he purposedly kept the sperm without swallowing, and lick the next pussy right after the sperm is in his mouth.

That way, there would be a reasonable amount of cum in his mouth when he lick that pussy. An average cock is about 6 inch long, so realistically, the sperm simply have to climb 6 more inches versus the conventional way of making a woman pregnant.