PDJT doesn'f need to go with prostitutes. He is a handsome man and a total heartbreaker in his younger years. He can and always could have any woman he wants.
Stormy has a reputation of shaking down powerful, wealthy men. She is either lying or this is an instance of 5 D chess.
Many men would simply pay her to make her go away. Many are innocent of her charges, but it's easier for the wealthy to just pay it because they don't want the hassle and they've got more important things to do.
Hopefully, we are just "watching a movie."