Just stop them and address it. Tell them you get turned on at that point in the massage, like, so much so that you would normally be touching yourself by then. Let them know it's hard for you to relax when you are warmed up and turned on like that. It can be counter intuitive to the session.
If you politely tell your masseuse about the situation, it will spare you BOTH embarrassment and resolve the issue in the best way. Don't assume they are more than willing to touch your pussy, but don't assume they can't tell you are getting turned on.
This is a good point. Say something to the affect that you are unable to relax because you are (blush) turned on by the massage and all of the touching!! You won't be lying to her either. it will be the truth. She will see that and know what to do after that. She may help you or she may say that you can help yourself. You don't know what is going to happen.
Still, I think it will help things out if you ask not to be covered. What will it help you ask? It will help make you horny!!
I can't wait to read about your next massage!
thank you for posting about that blog.