My girlfriend of 4 years well now mother of my child is very interested into rough sex. Normally this would not be a problem if it wasn't for the fact that she was r**ed at a young age by her brother. After she had gotten r**ed a remember hearing rumors that she was in on it and that they were together but of course she denieds it all. But just recently her brother was released from jail and now during sex she likes for me to "take it" and tie her up choke her ect. ect. What should I think of all this?