Yes! That is so wrong unless you break up with your boyfriend and your friend's boyfriend breaks up with her first. Even then, it is a mean thing to do to a friend since you'd be dating her ex.
Some would even argue dating a friend's ex is a mean thing to, even if you never participated in cheating.
Date his best friend, pretend to like him then dump him, date him again then cheat on him, steal all his friends >:)
Your friends that have been with you th longest u can never go wrong with them :P
You should break up with your boyfriend and get your best friends instead
Its wrong to cheat on a girl with anybody.
You have to do it very quietly. Discard anything that your best friend will notice that your going out with him. invite him over and make a move, if he rejects apologize and wait and then try.
Be nice and don't cheat on him
Best friends they are always gonna be there for you
your friends boyfriend will breakup with your friend, and your friend will get mad at you.
Best is not to have anything to do with him, once a cheat always a cheat.
Well think of it this way: Who is more important to you? Your best friend or your boyfriend's friends?
I Could Have a Lot of friends. But in these best friends those who don't cheat are all my best friends.
For some reason it seems your friends is trying to cause problems between you are your boyfriend. Although she would have her own reasons it is usually because she is jealous of you and your relationship as something she would like as well as you are not spending time with her anymore. There is nothing wrong with talking to other boys but be honest with him. If you want to be with him don't cheat or lie.