If a girl puts on black underwear, it means she would like to be groped by a black man. And that's what happened. What's she gonna do after that? Suck her dick and spread her legs. And the negro is happy to stick his dick in her pussy and make her drip. He got her good and tight!
I think every guy has ever dreamed of having sex with two girls at once (or even more). Here, all dreams are realized to the fullest extent - two pretty girlfriends doing everything they need to do.