Our imagination can beat the best (pornographic) film directory. Imagination is the reason why books are so much more vivid than films eventhough they're "just text". It probably was more exciting¹ than the instant youporn videos these days.
¹) Disclaimer: Although, back in the LSL days I was barely past the age when I would get excited by thinking about girls during class which might explain a bit...
IIRC, that black bar is shaking, though.