There are many father/daughter, mother/son, brother/sister, cousin/cousin consenting adult relationship in this country and throughout the world. If they decided to get into porn, it should never be allowed. Lanny Barby and possible the three movies she and her sister did should never have been released. They have the same father. That alone should get them booted out of the industry. Oh but if you already have the likes of Marc Wallice and Skeeter and Max Hardcore still working, then no one in the business really cares about adult incest.