Here is the 13 year old xhamstar batch: 31 short porn clips, from teasers to full loops.
If spurts is your thing, start at the top row - those gifs match 13 year old xhamstar closest.
No. All 31 13 year old xhamstar gifs on PornHubGif loop without signing up.
Yes. 8 of the clips are vertical and the whole site runs fine on mobile.
They are matched by title and tags, and the closest ones are shown first.