My little sister's best friend made a move on me while I was asleep?

Anonymous
I am 23 my sister and her friend are 17. She was having her spend the night this weekend and my sisters friend has alwasy sort of hit on me when my sister is not around, but I ususally ust laugh it off/try not to be alone with her. She also likes to rub up on me and such, I admit she is a very attractive girl and sometimes this gets me a little stiffy, whcih she notices, but Is till say no and back away everytime. Well this weekend, I woke up and I was hard (not out of the usual), but she was also blowing me... It honestly took me a minute to figure out what was going on and how to react and she saw I was awake for a bit and did not stop her right away, I was so out of place and disorientaed I didn't pause because I enjoyed it (I mean it felt good and she is cute but still...), just because it took me a second to fully grasp what was happening. I of course stopped her and told her to never do anything like this again, she said, 'I know you liked it, I saw you enjoying it, next time you'll wake up inside me' with a wink.

I just dont understand what is going through this girls head, plus I dont know what to do if she does something like this again, how physical can I get in getting her to stop? She just thinks this is all a game and touches me and what not even though I am constantlly backing away and saying no. I just feel so bad for my sister, because this is not the way a good friend should behave... And i have never wished I could have a lock on my door until now, or been affraid of a teenage girl...

Also P. S. Woudl this be considered rape? In a way I mean?
My little sister's best friend made a move on me while I was asleep?
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