Here is the japanese jk enko batch: 31 short porn clips, from teasers to full loops.
If bitch is your thing, start at the top row - those gifs match japanese jk enko closest.
Yes. 4 of the clips are vertical and the whole site runs fine on mobile.
People who watch japanese jk enko usually also look up bitch, shiboraretai, girl.
They are matched by title and tags, and the closest ones are shown first.