I've been going out with my girlfriend for four years,but we broke up for a while two years ago.While we were broke up I tried going witha guy for the first time.It was oral sex,and masturbating each other.I loved it. I told my ex about it and we ended up getting back with each other and she's okay that I have sex with men providing it's safe. The only thing is I've met this guy and he wants to try anal sex.I,ve never done this before.I think this is going too far for my girlfriend. She's fine that Im bisexual.If theres limits. I don't know what to do.I've been with several guy's and she knows about this but She might not like what I want to do now. She'll probably want to break up with me.I don't know what to do.