In your freetime you will register at gangbang sites or a gangbang forum. You can search or hope that you might get invited into one. But you wouldn’t actually put out your tiny dick, would you. You are there observing the girls behaviour. You will teach her, how she has to look when she gets fucked. You are standing nearby, locked away and graving the first loads of the cocks. And if one after another cock explodes you will be right there and lick her clean. She doesn't deserve the cum, it’s yours. Say it.
Say "I will lick the girl clean, because the cum is my cum and I don’t want to share it."
Say it 20 times while you are stroking 4min in medium pace.