Ok, here goes your punishment now.
Since you enjoy watching porn so much and stroking to it, and I'm about to take that away from you for good, you may do it one more time. You'll get to watch a whole hour of porn, jerk off and cum while watching it.
See how good I am to you?? You don't really deserve me... not me, not your girlfriend. You should consider yourself extremely lucky.
One tiny little detail though... it must be a gay porn movie! You MUST stroke to it, and stay hard for the whole hour. If you manage to cum, good for you, I'll only ask that you cum in a cup or glass. If you're not able to cum, tough luck.
Once your one hour gay porn movie is over, let me know.