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!
If a chick offers to tie you up, her main desire is to fuck your mouth with her pussy. She's only interested in your dick because she's not interested. And even if you cum, she won't suck it. So the blonde just humiliates the guy by squirting in his mouth.