If I get to fuck some guys wife in front of him, I'm taking my time. I've never understood the urgency to fuck like some kind of rabbit. What's the rush?
If I ever caught my wife getting fucked like a bitch with a big bull, just like in this video, I would not able to confront her to stop and disturbe her joy. Instead I might say 'Woow babe' and take my dick out and jerk before I cum inside my pants. I know I'll shoot across the room making her smile and happy with the fact I'm more than supportive , so she can take time and enjoy her bull without feeling guilty.