to be honest I dont really think about anything the only think I can feel is the pleasure I dont know y is this normal???I dont think about anything , I never realized this.... is that strange??
Im sure its completely healthy. Its probably not statistically the norm for masturbating; most people probably have some sort of established fantasy pattern.
I use porn to jerk off, but I need face pics and will usually cum looking at the guys face. My fantasy will often be on a theme about his first time even though the pic will be of a guy way past any first time Ill fantasize what it was like for him first time. His cock pics will be important, but Ill be responding to his face and to what I dream up about the thoughts I attribute to him.