I think the husband knows that his wife is filming regularly. Look at that - she has a microphone on her left shoulder and is connected to her phone. He's probably jerking off at home when he hears his Asian wife negotiating with the next guy on the stick. To get those breasts moistened with cum - I'd get in line, too! Look how her buns have risen on those jerks - there's a lot to take in!
I can say that the stranger behaved with the brunette on the bus as if they had known each other for a long time. He laid around flatteredly while the girl was sucking his dick, and they fucked each other without any shyness. The damsel took a ride not only on the bus, but also felt the powerful bumps in her hole from the guy's stick.