Her mouth was doing a great job on his cock! As for me, I would limit myself to the mouth - so relaxed to myself and catching a buzz. If even a gulp and lightly massage his lips after that - full flight! I love it when a woman can work with her mouth. And on the second run, you can already fuck her!
If you have a wife beautiful, you can not let her alone to travel - otherwise she will certainly jump on someone else's dick. It's not enough for her to rub her pussy - she needs to be licked and fucked.