The sister is really very horny, to get her brother into bed like that, it would have to be such a hen. Although in principle the brother is also particularly pleased with such sex, because they fucked just amazing and that can not take away from them. Although I think that such a mad fuck they will have more than one time, we can only wait and see, because she 100% dreams of his thick cock.
Specifically in this case, the saying is true - you like to go for a ride like to pay for your trip. And it's not about the money, because hitchhikers do not like to pay money - well, she did not pay. The driver combined business with pleasure: he found some company for the road, and in doing so, he threw off his tension. Although, for those who have watched it to the end, it's clear that the girl was just tricked. Maybe this will teach her to pay for the services she uses, instead of trying to get freebies everywhere!
Popeye