I like the way she was looking up at hubby while she was getting pounded. Maybe she felt she couldn't 'let go' and let him see how much she was enjoying
She is hot, he appears to have a nice cock and he is giving her a good pounding. But, she looks completely bored with the whole thing. I saw this same look on my wife's face one time when swapping with another couple. I stopped and my wife told me she was not into the guy but knew I wanted his wife so she was just going along. Hence our rule of neither of us taking a hit for the team. I wonder what this girls thoughts were.