As for the clip "The Beginnings", this video was also shot at the start of the relationship between Margot and Louis.
After training him to obey her, she trained him to control himself when he had the opportunity to have sex with her. He was forbidden to cum unless he negotiated it from the beginning in exchange for 50 strokes of the cane, to be endured beforehand.
In this video, we see that this training was not always easy for him.