Sure, not disagreeing. From what i recall broken strands of dna from a male (via insemination /intercourse) can escape the uterus and tubes and 'inhabit' the host female and also cross the blood/ brain barrier. I'm probably royally screwing the method of action up, but essentially these broken strands hang around in the female and can then pass into an embryo of a new Child, iirc these strands don't actually/ supposedly do anything but can still be passed from Mother to Child, so 'inert strands of foreign dna' that don't do anything, but of another male. Pure bloods, Marrying Virgins and monogamy for the win. Maybe someone here remembers or can post it.