Daddy sure is quick - got in and fucked his daughters like whores. But then again - he's responsible for their upbringing, so he's entitled to it. They even observe the line to get their pussy in. Sluts need society, too, and he can teach them to be their best. And I think - he's succeeded. I see they deftly worked his cock and even enjoyed it when he cummed in their open mouths.
That's BDSM.