With Kirk overtop of her lap, for a moment she couldn't help but just kind of stop and stare at what was about to happen. The fact that a man was about to suck her husband's cock in front of her, and one with the same face made her stare, she couldn't help it. At this moment, she totally won at life.
When she finally got her senses back, she ran her hand over Kirk's ass, soothingly almost before she brought the paddle down in hard slaps against his back side. Sure most of her was still watching Tony sliding in and out of Kirk's mouth but she at least had the forethought to keep spanking him, sometimes even with her hand.