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?
The young girl agreed to make love to the mature couple - and in fact everyone was happy! For the young girl it was a way to relax and gain experience, for the mature couple it was an option to diversify their sex life without going to the left!