I was living with my partner until 2 and half weeks ago until I left over our rows about my jealousy.
His brother was also living with us and was the person who brought the magazines into the house knowing that they always caused rows between me and my b/f. He has also done and said a lot of things that in my eyes he shouldn't. Could you tell me if you feel the same?
He has been telling me about someone feelang another persons bum in a club he went to but instead of just telling me about it he showed me by squeezing my bum. I don't think this is something you should be doing to your brothers girlfriend whatever the reason.
He has told me that loads of girls would die for a pair of t*ts like mine and has comented a couple of times that I look fit.
But the trouble is now that me and my partner have split my mom has told him that his brother tried it on with me which I would not class it as. He is denying it to my b/f and making me look like a liar. His 'girlfriend' if you could call her that is a friend of mine for most of my life knows about what has happened and he is now trying to split us apart as well.
I am also a good friend to my b/f other brothers g/f and I have been talking to her about things and she said she can believe it from him because he has said something similar to her also. How can I make everyone else believe me without jepordising my friends relationship with her b/f. Help

Trust me everyone already believes it. After all (and I know some hate this) but boys will be boys. So although everyone is not standing up for you I think they probably don't dought you either. Just move on if you are going to be with his brother it's just something that will have to be dealt with (they are not going to kick him out of the family). Don't make a bigger deal out of it than you have to. Establish boundaries, and be sure you and your BF keep them in place.