geez, tell her to stop dating guys from the internet!! she obvioulsy has self esteem issues on many levels. if in any way she is incomfortable or is in pain and she says NO, the guy should back off. i don't think technically it's rape but it IS wrong what the guy is doing. if she can't see that, she needs to stop hanging around guys that are going to take advantage of her.
PLEASE PLEASE show her this thread so she can realize how idiotic she is being.