Though I was unaware of it when I first watched the video, and it had not consciously entered my mind even when I started this thread, I have since realized that this particular scenario might have especially affected me because it evoked memories of a real-life situation I was told about that used to arouse me terribly.
A friend told me about corporal punishment two of his cousins received from their father. Though I knew the cousins, brother and sister, my only knowledge of their punishment came from my friend, neither of the cousins ever mentioned the subject around me. By the time I heard this story, the people involved were in their late teens and my friend knew the threat of the belt was still very real for both of them. What my friend did not know, was what a crush I had on his girl cousin, even though she was much too old for me. She would not have given me the time of day. Of course, the unobtainable is often most desirable.
What my friend told me was when their father decided they had earned a session with the belt, he would tell them, "Go to your room and wait for me. I will be there shortly. You might as well go ahead and get yourself ready." This meant that they were to go to their room, remove everything from the waist down, lie face-down over their pillows as depicted in the video, and wait for the inevitable. Sometimes the wait for their father, as they lay bare-assed, was lengthy. They knew why they were there, and they knew what was coming. When their father finally arrived, there was little said, he took off his leather belt and striped them good from their upper buttocks down to mid-thigh. Afterwards, as he was putting his belt back on, he would tell them to stay as they were until they they thought they could come out and behave.
Frankly, I did not care about the punishment of the boy cousin with one exception. I was told, a time or two, when the cousins got into mischief together, they were punished together. The mental image of the girl preparing for, and being punished, tortured me deliciously on occasion for years. Sometimes, I found the image of the boy and girl being punished together even more provocative. Those two scenarios were the subject of many a masturbation session for me over a period of years.
I have long since lost touch with the friend who told me of the above. The "girl" involved is now a grandmother, and still lovely. I occasionally run into both her and her brother. They have no idea...