Since the chick came for an erotic massage, she expects to be whipped. Here she gets all the muscles and body prepared for intercourse, rubbed with oil for better gliding. And to thank the masseur with her mouth - it's cozily. Let her husband think she's at her girlfriend's house.
Every daughter has to learn how to have sex. And it's good when parents are understanding about it. Her father tried to teach her the easy way, but her mother said she knew better how to suck and wiggle. They decided not to touch her ass yet, but they taught her good manners in the pussy and the mouth. The mother turned out to be a skilful master and taught her daughter the right technique. What a wonderful family!
I have repeatedly advocated this kind of close family ties. It is better to have granddaughter at home, and grandfather to have some fun and share the experience, than to go back and forth with someone I do not know.