That almost definitely won’t be the video and the description will be ‘suggestive’ at best. Her page and agency are well known for the photo not matching the video, and the wording of what you’re buying will not specify its b/g etc.
I just googled her handle and 20:13, and she has a video exactly that length with toys in stockings.
Her b/g videos are all around 5 mins, nothing even slightly longer