In Northern Brazil there's the "boto" (river dolphin) myth. Certain nights, when there's a party on villages by the rivers, a dolphin shape-shifts to a handsome stranger and seduces young women. Yes, the women quite often get pregnant.
-"Foi boto, sinha"
-"It was the dolphin, ma'am"
Cool excuse, eh? It was not any handsome stranger or cute neighbour. It was a supernatural creature! Saves girl's face, her familie's reputation and the baby's as well.
Now, what's more likely?
A) Shape-shifting dolphin are actually seducing and impregnating young women
Or
B) Its just a myth built to save people's faces and reputations?
Now, and what about similar myths elsewhere? Zeus seducing young maidens, for example. What's more likely?
A) A god (or ET or an ancient unknown high-tech species) seduced and impregnated the maiden
Or
B) It was a tall tale buit to save (and eventually enhance) the maiden's and the baby's reputation?
And then we have that Jesus guy...
Young woman, married to eldery guy gets pregnant. She claims an "angel" came out of the sky and the "holy spirit" impregnated her...
No, it was not some handsome stranger which happened to be around, neither some nice good-looking neighbour or some rapist.
It was god (or ET or some individual from some unknown high-tech species). The girl is pure and inocent, her eldery husband has not been betrayed and the kid became a demi-god.
Yeah. And some people buy this crap even nowadays.