What's next?

You and the girls (original concept by "monkey17", proofread by me)

You hear a commotion at the door, along with some giggling. Then Beth walks into the living room with three of her closest friends. One was a tall black girl with an athletic build. She had average tits, but a good looking ass. Next was another blond, around average height and sexy body, sporty with that cute-girl-next-door look. Finally, a redhead, smaller than the blond, but still taller than Beth. She was slightly porky with a fat ass and the biggest pair of tits among them. You had always wondered how they all became friends, but it really didn't mater.

"Hey girls, what are you planning for tonight?"

"Oh, we're going to watch some chick flicks and discus boys, do each others make up. You know, girl stuff." replied the black girl.

"Well, I will be joining you tonight and there's a new rule in this house for tonight. For tonight, the only clothes girls can were is their underwear."

You grin as the girls moon and glare at you and Beth but obey. The girls strip down till they were just in there bras and panties except Beth who was left topples and in here dipper.

"Now, I'm going to order pizza for us while Beth finds a porn film I would like for all of us to watch together." With that said, you leave to find the menu you know you had and make an order. When you get back, you find that your sister has found a porn called "School of Slut". It was about a class of hot girls in an all girls school who get a male substitute teacher. The teacher isn't actually the real substitute and spends the film turning the teens into sluts in order to win a live stage sex performance at a high quality strip club. You sit yourself in the middle of the couch with black girl on one side and the redhead on the other. The two blonds sit on the floor in front of you. As the film begins, you tell the girls that if they feel the need to masturbate, then they had to, except for Beth, who wasn't allowed to. Within the first few minutes of the film, the main male main character was fucking his best friend's girl hard, because she was being a controlling bitch. You fond one of your hands playing and squeezing the redhead's quite ample tits and the other hand was rubbing the black girl's crotch through her pink thong. Just then, you hear a nock at the door.

Who should answer it?