The video had a woman in some sort of dungeon(?) who is escorted into a closet-type area where there are a bunch of arm-length gloves attached to the walls. People reach through the walls and grab and grope and touch. Then someone in the bottom of the platform shows up with a dildo attached to his head and the woman rides this, before coming out of the closet and getting fucked by a woman in a strap-on (who is also wearing gloves).
I have no idea where I got this video from, but it may well have been this forum a few years ago.
The comprehensive set of gifs I made can be found here:
https://imgur.com/a/hJmXrPq
I'm really hoping someone will know what the video is!