Negroes, mulattoes like to spank white girls in all holes. The fact that this brunette is also a charming girl - gives a glamour to what is going on. And he's just using her as a device to jerk off his dick and lick his balls. He uses it and then he flushes it. And she's satisfied.
Fucking in front of a hidden camera of course they are great, even and you would not think that they are brother and sister, because they behave very relaxed, I think that means a lot, although maybe they already have sex is a pattern.