Depends on why she doesn't trust you. The main way to get a girl to trust you is to be honest and don't "not tell her the truth". The more open you are with her the more trusting she will be with you.
You know how she says that "You never trust me in anything I say." Well then prove to her that you do trust her. So the next time you see her and she says something or tells you to do something, then do it or listen to her! :)
have sex with him
You can gain there trust you just have to work hard and never give up until they trust you
tell him to trust or bust.
Do you trust your girlfriend? if you do then no worries pal just let her hang with them and if they really are not the greatest people then she will figure it out...
That depends. I have ex-girlfriends, and i woudl say yes, hwoever it also depends on if they dumped him and if he still hods a torch for them.
gain his trust, or dump him! gain his trust, or dump him!
Trust is normally established over time. If you don't let each other down or betray each others trust, you will gain it.
Friends
Get him to trust you. Don't cuss around him. And be polite if your around him.
be honest to them from now on and you will regain there trust=)
to gain the trust of