Cuckolding. Wife Domination, #3

The third story in Caroline's journey from faithful wife to submissive slut brings the spouses into the relationship. Dom Gavin turns up unexpectedly for dinner as her husband's new, very rich client and he has his slim, blonde wife with him. Sam is soon given an indecent proposal he just can't refuse - this is an account he can't afford to lose. Caroline is taken to new heights of pleasure and her weedy husband is forced to watch it all.
Extract:Suddenly the weedy accountant nearly jumped out of his skin. There was a loud cracking sound of leather hitting skin, quickly followed by a scream from his wife. He jumped up to a glare from the Dom. "Sit back down!" Gavin barked. Sam obeyed and tried to ignore the sounds, which were getting louder and more distressing. "I told you Lana would work her over, " Gavin said. He sat down in the chair opposite.
"Don't worry, " he added. "I can assure you she's loving it!"Loving it! She was clearly in a lot of pain!" Sam kept his thoughts to himself and tried to concentrate on the task at hand. The whipping or whatever it was built up and then stopped and the screams soon became moans that could have been pain or pleasure but were making his cock hard regardless. That latter fact was blatantly obvious to Gavin.
"Like the idea of your wife getting a good strapping do you sweet pea?" he teased. Sam said nothing but instead focused on the crescendo of noises coming from upstairs, which were now undeniably sexual. There was no mistaking the fact that his wife was being heavily pleasured by his client's woman.