Absolutely, but you have to forget all about that when you are in Patong. Do not fool yourself. If you pick up a Thai girl, she will expect payment, but as others has said, some of them are very shy and will not directly ask for money. They may even tell you that they have never gone home with anyone before.
Pay them!
You have two choices for not paying: pick up a tourist, or stay in Denmark.
BTW, your ex girl friend, does she like older men? :clown: