Mom teaches her daughter and son how to fuck

A hot mom really wanted to teach her daughter and son how to fuck properly. She started with the young girl in the shower. She washed her daughter and then helped her cum with passionate masturbation. After the shower, she went to her son. When the daughter saw how her mom was working with her brother, she was shocked. Her brother was fucking their mother doggy style like a whore. The young sister was jealous and wanted to be there instead of her mother!