I've witnessed this type of scene before with many of my friends. My girlfriend's husband/boyfriends use some lube and run their fingers over whatever part of their head they can touch. He does this to himself while his wife/girlfriend takes on a couple of seriously hung black guys. It takes awhile for the husband/boyfriend to cum, but they almost always do. That is because the wife/girlfiend's session with the black guys goes on and on. These interludes are so sexually exciting for all involved. The woman is doubly thrilled. She gets totally used by a number of black guys who really know what to do and she gets the thrill out of having her husband/boyfriend right there in the room watching it all happen and watching her over and over again writhing in so much pleasure. The black guys love it because they know they've totally turned the woman and now the man won't ever be able to satisfy his woman ever again. And I'm told the man loves it because he gets to see his woman experiencing the ultimate sexual pleasures that black men deliver. These scenes are always so charged, everyone in the room is super stimulated..... Really fun. And I see it (and hear about it) happening more, and more, and more.

i just wonder how he fucks with that thing on his cock

The ultimate humiliation for a cuckold or sissy. Squirting while wearing a cock cage.