To tell you the truth, considering the age of the brother and sister, it is quite normal that the brother became aroused by the sight of the naked girl in front of him. Maybe what happened next is not part of the plans of normality, but tell me honestly, would you resist such a dark-haired beauty? That's what I mean.
That's a case where you can envy the two of them. A Negro was pampered by a beautiful girl, made nice with her mouth. And the girl had sex with a beautiful and insatiable partner, who found somewhere to put his bolt.