Any sister should help her brother get unloaded. What does it cost her to give a blow job or let her in the pussy? It's not like she's gonna get wiped in a couple of times. But she'll get his respect and an extra workout in return. Plus she gets to taste his condensed milk for free. )))
The father clearly raised his daughter - Dad is the main thing. You could always find support and encouragement from him. And to suck his cock is just a thank-you for having him. By pulling her on his cock, her father showed how much he trusts her and that secret will be with them now. And the chick did a great job - and daddy is happy and she's even closer to him now.
I want her, bitch.