My friend got handsy while giving me a back massage?

I slept wrong last night and my back was in terrible shape. My friend was over and I asked him to give me a back massage because he is really good at them. He said yeah so I lied down and he straddled my back like usual. Only thing that was weird was that he was obviously feeling me up. He pretty much massaged my bum and his hands wondered about the side of my boobs WAY too long. He has given me plenty of massages but never done this should I say something or act like it didn't happen?
My friend got handsy while giving me a back massage?
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