Skinny moaning chick jumps on fiance's hot cock

The half-sister is afraid to sleep alone tonight and therefore comes to her brothers bedroom to sleep with him for a couple. She lies down on the same bed with a guy and, unable to resist the desire, masturbates an excited cock in order to have sex with him later. And only after tearing his sister to the fullest, the dude thinks whether it was a fear of the dark or a banal sexual multi-move?!