A little humor in porn is only a plus.
This guy who is tied up, he appears in many videos, I think, as this simpleton who gets cheated on by his girlfriend. Just look at his face, it simultaneously expresses frustration, helplessness and cowardice. I wouldn't be surprised if, after the lover left and the girl untied him, she only had to say a few sweet-faced phrases for this cuckold to forgive her.
At first she rubbed her lips against him, and then she leaned over and he rubbed her pussy where she needed it, making her squeal and moan like she was fucking for the last time, she felt the payoff.