Is this cheating?

Yes, definitely sound like cheating. One thing is to masturbate on your own thinking about others which is ok, but cybersex [that's how it's called when you masturbate from online] is cheating. Of course you should settle it with a girl first and ask her if she thinks it's cheating or not. If you are in a relationship, you shouldn't play online or in real life behind her back - ask her to join you in that game.

if you are in a relashionship I wold say no talking to them at all, my boyfriend did that shit to me and it is very disrespectful.

if you are in love, why would he be talking to anyone no matter where they are.dump the ass hole

You have already reached ur limit . When a person seeks attention from someone no matter how far it is considered cheating. Because ur looking to fulfill something which ur girlfriend probably thinks she's doing. Cheating is having a sensual relationship with someone emotionally or physically . I would feel cheated on as a woman. Because and relationship that has to be discreet will eventually go further than intended. Because it' s a secret that you don't expect to be found out . So yea limits reached .

yeah I'd be pretty pissed off if I had a girlfriend and she did that to me, either on the internet or in real life

it sounds like cheating to me, but talk to your girlfriend about it, determine it within the relationship.

Generally speaking, if you're in a relationship with another person, regardless of location, and you do ANYTHING sexual with someone who is not the person you're going out with, that would be cheating.

At least I think so.