Making the Team/Mary, keep watching, keep watching
You haven't realized it till now but your cock is painfully hard inside your pants, desperate for release. And how can it not, this is the hottest thing you have ever seen. Licking your lips you can't do anything but to remain where you are, your eyes firmly locked on what is going on inside, on your tiny sister surrounded by all these teenage boys with their hard dicks. You just have to see what is going to happen next. Perhaps you are also afraid that it will end if you move a muscle, you can't really say.
The boy who had just shot his load steps back and let's someone else take his place, a beefy, muscular and broad chap with midnight black skin. You struggle to remember his name, you come up with nothing, but then it's not important either. What is important is that he places his large hand on Mary's head and strokes her hair lovingly for a moment, grinning down at her, before pushing his throbbing member into her face. "Open up."
She does, not eagerly but certainly not unwilling, and even pushing out her tongue like she is at a doctor's visit, grinning a bit. That grin vanishes as the boy pushes his cock into her mouth, forcing her cum coated face into his pubic hair and his dick most likely hitting her throat. She gags and retches and you can see tears appearing in the corners of her eyes, smearing her make-up. For a moment they stay in this position, Mary held in place with the hand now gripping her head, then with a groan the boy begins to viciously fuck her undersized mouth. He begins to pump in and out, slobber and cum and pre-cum coating his dick and flying from the corners of Mary's mouth, using her face like one would use a cheap 50 cent whore. She gags and chokes, her eyes tearing up, her arms shaking, but she doesn't fight it, not really.
It doesn't take long again, she must be hella good, before the boy pulls out and begins to cum, his throbbing cock spurting out lewd amounts of white teenage baby-batter, coating her face and chest, some of it even hitting her forehead. Mary meanwhile gasps for air and coughs, but she remains in place, taking it as much as a pro as she can. For a moment she remains like this, still held in place, before the boy steps back, making room for the next guy to use her little hot mouth. And you still stand here watching. What do you do now?