As I said, I'll try to find them later. I have 8,700 pics and videos there, so it takes a long time to find stuff if they aren't "tagged" by subject, which mine aren't. Sorry about that.
With Tumblr blogs, if you click on their Archive, you can scroll through month by month, rather than page by page.
If you love big, fat, uncut dicks as much as I do, you won't be disappointed on the way to finding the docking vids... ;)
Unfortunately, like with frottage and mutual masturbation videos, docking videos are rare to find and almost always very short. I don't understand why!