Does that make me cheating or wrong?

It sounds like you are trying to justify cheating.
For example:
One day I was walking down the street. I was so interested in what a beautiful day it was I did not see the banana peel that was on the ground right in front of me. I stepped on the banana peel and slipped! I flew high up into the air and then started to fall. Unfortunately, I landed directly on this woman.

Is it cheating if when I fell my penis accidentally slipped into the woman passing by?

Don't be kissing other guys anywhere and your concern is resolved.

Yes, unless your in the drama club and its part of the play your rehearsing, there really isn't much call to be so flirtatious with another man, if you respect the feelings of your boyfriend. It was wrong.

ANYTHING that you could do behind his back with another boy that you WOULDN'T do if your boyfriend was watching is wrong. Because that means you know its not okay, and it would make him feel bad, so don't do it. (OR at least admit that you're deceptive to your boyfriend, and hurtful behind his back).

That said, if your little circle of friends is playful like that, and it wouldn't mean anything and he wouldn't mind if you did that (the kiss on the cheek) if he was present, AND that's all it was, then your fine. Mature people all over the world allow their spouses to kiss others on the cheek without it being deceptive, wrong, or hurtful. But something tells me you're not quite that "cosmopolitan" quite yet. And since you're feeling SOMETHING about your actions enough to write the question, you probably know whether you're interested in cheating.

Stop kissing this guy on the cheek, and if he's playing tricks to get more out of you than a friendly gesture.. he is a few steps away from being a real jerk. Protect yourself from this kind of behavior.

No. But you shouldn't have tried to give him a cheek kiss in the first place. Your lips are for your boyfriend.

No that isn't cheating unless the lips locked but since you were caught off guard and turned quickly you did nothing wrong.

There is nothing wrong with kissing on the cheek as long as you both know that is ALL. You need to talk to your friend and make sure he understands. Anything more than that is definitely cheating.

Well I don't think you should have been kissing the other guy on the cheek in the first place. That would hurt your boyfriend just like if he kissed another girl. I know you didn't mean for your lips to touch, but you still were gonna kiss him on the cheek, which is wrong. I don't know if I'd necessarily consider it cheating unless you have feelings for the guy you kissed on the cheek.