Cure is right, this guy litteraly ask his wife to prostitute herself for him, yes the manager set him up, but, still, he chosed to ask that instead of just say to the manager to go fuck a trashcan.
Jeez. Minato is trying. Given the rule in NTR (or erotic stories in general), "bigger is better", even if Minato had done this first, his dick is too realistically big to compete with the ugly bustard's cartoonish girth.