my sister boyfriend cheated on her with me should i tell her we slept together?
476870
There will be a HUGE problem if you tell her, but YOU need to stay away from the boyfriend.  The problem is, what if they get into an argument and he gets mad then says, "Oh yeah??  Well, I slept with your SISTER!"  Guess what?  You WILL have to deal with it then for sure!!
829478
Don't feel bad okay, he is a jerk that why your sister brake up with him, if he is your sister boyfriend he should treat you like his own family, maybe your sister and him doesn't have any feeling or relationship again so don't worry a thing.
625118
Let her make a fool out of herself and then tease her about the foolish stunt relentlessly.  For years.\n\nLet your boyfriend in on the joke right away.\n\nDon't be afraid this will backfire on you.  If your boyfriend is turned on by your sister and YOU wind up alone, you are the luckiest girl in the world.  Really.
298451
If you have any doubts it is.  I wouldn't do it.  It's at your own risk; what happens when her sister finds out that her sister is dating her exboyfriend?  Hopefully she doesn't choose you over her?  :)
836880
It is admirable that you told your boyfriend and also apologised.\nWhat you should do is to give him time and see what happens\nSeriously i think that you are a very brave girl\nGood luck
985130
No, he shouldn't brake up with you over this, but you do need to repair any damage that might have been caused between you and your sister. Sit her down, apologize to her, and ask her if she could give you guys a little more alone time together. I'm assuming she's younger, but she might just be reasonable about this. \nRemember friends will come and go, but she will be your sister forever.
526270
It sounds like you're more bothered by the fact that you feel your sister may have lied to you.  Having her leg sliced open may have been pay-back, but that's not your concern.  It's between her and the All Mighty. I feel that your primary concern should be the fact she feels that she can't be honest with you.  I would confront her.  Be cool and calm.  It doesn't sound like you even have all the facts.  So don't jump to conclusions.  Just sit her down and have a sister-to-sister talk.
474279
I think your girlfriend is a bit on the immature side and jumped to the wrong conclusion when she saw you laying down cuddling your sister. God bless you for being such a loving big brother and consoling your sister.\n\nGive your girlfriend time to calm down, then talk to her. Explain why you were consoling your sister, that's all. I think she will realize that she overreacted. I hope so.
1050422
Wow what a whore! Unfortunately sweetie when your that much of a whore  (Which she clearly is) you don't care what people say or do to you. She's a low life, and a loser. I feel bad for your sister but her man doesn't deserve her. She's way too good for him. My idea is this, just gather all the ladies who's man cheated on them because of the whore and just tell them who's at fault once they find out one person is the cause of there problem then all hell will break loose.
655129
Maybe you did them a favor...  I don't know what the "information" was, but say you knew he cheated on her, or lied to her.  You telling her may have been the best thing!  Don't be so hard on yourself.
1068495
Yeah, tell her the truth. The truth will set you free, as they say. Tell her exactly what you said here, that you love her so much that you don't want to involve her. If you can't bring yourself to tell her what it is that happened, just tell her she will be at risk if you did. Wow, I feel for you, best of luck, I hope your problems will be solved soon.
392392
You really do need to tell her, if she finds out some other way and it comes out you knew she probably would never forgive you. But for telling her the truth she may be pissy for a little while but once she realises you were right and it all calms down a little she should come around, That is if she gets mad at you at all. I definately would try to go in there with some proof. Dont go in saying you should dump  his arse, just assure her you are there for her. Good luck
1094490
Yup - what you did was wrong and pretty sickening considering you betrayed your sister for a night o sex.  You are supposed to be able to trust your family and know they have your best interests at heart.  When your sister finds out she is going to be hurt and you will have to deal with the consequences of your actions.  Of all the men you could have slept with - you went and slept with a guy she was involved with.
622080
Well, it is unlikely that his own sister would lie about something like that.  Confront him and find out the truth, then if it is true, leave!  You deserve better than that.
861055
From what you described, I think it was the only choice.  And why should you feel guilty?  She's the one sleeping with other guys.  Sounds like you fell for a ho.  She did you a favor. Get on with your life and never look back.
673501
I feel sorry for you.My advice is, identify the reason why she did it,also ask your self I am faithful and am I the person who she feels comfortable and secure?After you answer these questions, you can decide.If there is any weakness on your side,(I am not talking about the sexual thing) you better forgive her from the bottom of your heart and leave peacefully.
104940
Has your sister fully moved on? Maybe explain the situation to her, and your feelings.  She may be a little hurt at first, but it would be better to be upfront then sneak behind her back