my current favourites are:
https://thisvid.com/videos/fisting-germany/
love the bottoms in the slings, sharing a bottle of poppers and sharing the same fister as he fists them both at the same time. they love it.
https://www.myvidster.com/video/225089193/Benedictux_-_Fist_Fuck_-_Machofactory
the fister's got a fantastic hard cock and the the way he look's into the bottom's eyes as he fists him.
Any other recommendations?