David and Mary

Dave and Mary both students in university and both highly sexed. She tends to dominate while he is happy to comply to an extent. They realise their funds are running low and boost them by starting an escort agency for just the two of them. Her for males and females him just for women. They soon realise there is more money specialising and she becomes a dominatrix with him as a slave/sub to his female customers and also to assist Mary, thus finding success and changing their futures.