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.
Unfortunately, such dreams are not uncommon not only for the paramedic (although he, a whole day surrounded by young girls nurses in this respect is more difficult). I can't speak for the busty blonde, but I often dream about sex.