Is it normal that i masturbate while chatting with people online?

Let me get one thing straight, it's not a turn on, it's just something I do. Usually I'm in the middle of it and someone messages me and I just don't feel like stopping, other times I happen to get bored while in the middle of a conversation with someone and I just start doing it. I don't fantasize about the other person or anything, I just tab out of my porn, reply to their message, and get right back to it