Severus rolled his eyes and sighed, "It’s not that they are girls Harry, but that they are omegas. I know you think that the passing on of family titles is pure-blood nonsense but to many people, it is a very real pressure. Andrew is Lord Abernathy and his family expects him to pass on that title to an alpha son. An alpha daughter might do, but a son would be the preference. Morgan is his wife thus the family expect her to birth him that son," Severus explained.