The only thing that make a massage 'inappropriate' is the INTENT of the therapist or person receiving the massage.
She was really "Enjoying" it, is very veg. A massage is meant to be enjoyed!!!
If the therapist or clients notices during the massage that the intents of the other person has become anything other than the spiritual connection of giving & receiving a Therapeutic Treatment, then they're to stop the massage immediately and addressed/correct those intentions before proceeding on with the massage any further, and if the massage continues without correction then it is considered inappropriate.