For some reason, I can see it being something like this:
Girl asks Sam to come around her house, to chillax.
Girl phones 20 of her girl mates, and also invites them around to her house.
Sam arrives, to be met by 21 girls, they circle him, and then start a chant of 'Sam has a Mangina, Sam has a Mangina!' for a hour.
Sam returns home, a broken man, and finds comfort in playing fifa with his mates, who also all, coincidently, have manginas.
Haven't played 12 that long, but in 11 I never got a son in my two 40 year careers. Could be because I read somewhere that if you put international footballer as your reputation then it's easier to get a son. I put Sunday league footballer in both. Then in a smaller save I played, Hangeland, after retiring, took the Cologne job and got a son with Brede in his favoured personnel. It does not happen that often.