(Porn + horny = Porny.)
Being porny is writing or acting normally but then going into a naughty or sexy mood to arouse the other party.
You can do this in casual conversation, texting (turned sexting) or email.
Me: I was texting him and all of the sudden he was being porny and really descriptive. It was weird for
a study buddy, right?
Friend: Ewwwww! Yeah, totally weird!