Arousal is nothing to get embarrassed about this is a natural occurrence in both men and women as the body completely relaxes. Men may find that they get an erection , this is common, so don’t worry, its just your bodies way of saying you are enjoying the experience.
A woman may show other forms of excitement, a lot get of women get turned on and moist; some may climax, ladies don’t feel you have to climax, Just enjoy the experience.
For both women and men this experience will either end up being and enjoyable experience or a memorable massage. The key factor is not to get embarrassed.