Nice couple and they had a good time. Oral caressing in the 69 position is a real hoot. As for me - it is possible to stop here. You don't have to do sexual acrobatics every time. Quite a normal way for two to enjoy sex. But more often in this option, the first to cum is a woman. So then in any comfortable position, you catch up with yourself. It is best to lie on your side - when you come you can leave your dick in the car and lie there for a while more relaxing and stretching your pleasure of having a woman.
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!
In addition to putting his bolt in a warm spot, he watched the girls play with themselves, and then with his girlfriend. The sex turned out to be vivid.