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.
Either this half-sister is a slut or it's not the first time she's fucked her brother. Look how calmly she reacts to his appearance. And even though his dick isn't the healthiest, he's always around and she sucks it with pleasure. And judging from the video, the girl likes to be licked there. She even shudders when his tongue touches her clit. Yes, and with his fingers he helps her catch up before he comes inside her. It's nice to live with such an available sister!
I wish she had titties.