This is called micro-chimerism if you want to look it up Of course (((Science))) denies this happens in humans but it happens in every other mammal. If you ask any competent dog breeder what happens if you let some sperg dog jizz in a bitch, and then what happens to other litters afterwards they'll tell you they'll still see the sperg dog genes even when using other stud dogs. This is why you marry a virgin, and if you've cummed in a woman and she has children they're actually partially you're DNA, especially if you're the first guy that came inside her. If you don't marry a virgin and she took loads like a whore, your child will not be 50/50 yours and her DNA, you'll get Chads DNA too.