Many people like their friends partner. That is perfectly normal.
If you mean something more than 'like' then show your friend and his partner some respect and keep such matters to yourself.
have a threesome
Guys want their friends to like their girlfriend but nothing more........ They don't want her to be liked by his friends as much as he likes her........ Guys just want their friends to accept her and be ok with it but not love her...
she's in the mode to cheat and your friends are not true friends! like seriously what kinda friend will help or join your girlfriend to cheat on you? and btw your girlfriend is not serious with you
you can tell him, or his girlfriend if you are friends with her
You shouldn't have to lie about who you are in front of them, so if you don't feel like you can just be yourself, you have the wrong friends and girlfriend.
break up with your girlfriend.
Flip your hair and laugh with friends.
tell your friend that you like he and if your friends with the (girlfriend) tell her that you like him and if she gets mad DRAMA QUEEN then when they break up you have a chance. :):):)
No Cream and tails only like each other as friends they never kissed and never will be girlfriend and boyfriend just friends.
Best friends are best friends because they share similarities. Lazy or hopeless guys love their best friends' girlfriend because he would like the same kind of girl.
find another girlfriend
Try flirting with him/her, but not in front of their girlfriend/boyfriend. But then again, be friendly, you may want to be FRIENDS with them first.