In order:
No. (the video "OnTop" is her riding her boyfriend but the sex in terms of reality is inconclusive. We can't really tell what's going on because the camera doesn't pan down far enough. There is a guy under her though as you can see his toes now and again)
"Afternoon Quickie" was an LTO if I recall so it's rotated off the site. Again, no clear idea if it's grinding or the real act even though you can see male hands holding her arms back. Pretty hot video I thought despite the Alfred Hitchcock school of "erotics out of frame" idea.
No idea why the navigation is screwed up. Probably to prevent posts like this