To cut a long story short, the article basically said that;
a) when the sperm enters into the womb for the first time, the body will absorb and retain the DNA of the said sperm
b) the bad news is, the DNA will be passed down to the any baby she might conceived, even if the father is not the one whom took away her virginity
c) hence, the baby will have the trait of this "virginity taker", such has having his look, behaviour, etc
d) and this effect last for a long time after the woman first had sex
e) but she only absorb the first man's DNA, not the rest
So if you are a man and you find that your children does not look like you but some other man, don't worry, they are still your children.
But if the article is to be believed, technically, that virginity taker is also the father of the children, by virtue of the, well, DNA that was absorb and passed on to the children.
Maybe that is why, the older generation insist on virgin, which is now a rare species.
Maybe that is why, men inherently, instinctively, wanted to bed a virgin, even though they might not have a baby with those virgins, their DNA will still be passed on.