The lady is gorgeous, pure sex! Such can inspire a man to sexual exploits even if he is very tired at work! But I would not advise to go on business trips with such a sultry friend, she obviously can not do without sex for a day! It's good if she is good with a vibrator, and if not?
And the stepson wastes no time - to spread his stepmother's legs and cum in her slit is a good revenge for his father's offense. And she does not suffer from remorse - happy that she was in the right place at the right time.