There are bunch of missed opportunities for insanely good prone bone angles in many videos, especially massage related ones like these:
https://www.sexlikereal.com/scenes/massage-trade-21475
https://www.sexlikereal.com/scenes/a-massage-before-the-big-game-10466
https://www.sexlikereal.com/scenes/deep-massage-28958
I'm aware that these videos are not SLR Originals but I humbly ask for more prone bone from angles like those whether it's from SLR or if someone from any other studios are lurking on this forum!