How do I handle this?

My bf and I have been dating for a year now and in the past he had raped me two different times. Once when I was sober and once when I was drunk (he wasn’t drinking). Last night I was in my normal night clothes(underwear and a T-shirt) and I’m sleeping and I feel him taking his shorts off and trying to move my underwear so he can put his dick in me. I didn’t know what to do and I’m embarrassed because I didn’t react. I was just stunned. Well he didnt put it inside of me because I rolled over but how do I talk to him and tell him it bothers me and makes me VERY uncomfortable?