A Brutal Slasher Story - Please Add On To This

"I like the sound of that!" John says as he steps off the desk and walks towards you.
You Stand there with full apprehension as he reaches down to your pants and undoes your belt.
Your penis starts to rise with the excitement. He notices and grips your crotch through your pants as he stares at you and smiles.

He then removes his hand and grabs the back of your head, pulling you in close for a kiss. As you feel his tongue inside your mouth, you also start to feel his free hand pulling your pants down. You give some tongue back before he pulls away. He pushes you up against the wall and pulls your pants down to your ankles. Your penis stands stiff under your boxer shorts, and John wastes not time as he yanks them down ravenously. He grabs the shaft of your penis and starts to tease you by wetting the tip of your penis with his tongue. He kisses the head of your penis and then pulls back to lick along the side of the shaft like a popsicle. You know full well that he will eventually suck the whole thing, but right now he is driving you nuts by torturing you.