Surprisingly, it was not

The smile fades from Sam's sweaty face for a moment. He glances down between your bodies, then looks you in the eye again. "And make me do all the work? I think not. Good girls do their part."

Sam turns around and straddles your face, then bends down between your legs again. You much prefer to be on top for this kind of thing, but you'll play along. You grab hold of his shaft and angle it downwards enough to give it a good long lick. He copies you almost exactly, and so you figure you should probably take things a little further. You close your lips around the head of his dick, fully intending to just play with that for a while. In this position, however, Sam does not have to put up with your teasing. He lowers his hips, sinking so much thick cock down your throat even your well-trained gag reflex begins acting up.

You push against his hips, and he lifts himself up again. He doesn't actually give you any respite, though, as he begins fucking your throat at a slow, but no less brutal pace. At least he's not shoving it quite as far down as before. This, you can handle. The moment you begin properly sucking and using your tongue, he fully commits again as well.

You were so close before that it only takes seconds before you are on the precipice again. This time, Sam does not hold back. In fact, he does not slow for even an instant. With your mouth thoroughly plugged up, you don't need to hold back either. You practically scream as it hits, though only a muffled sound actually escapes your lips. If anything, the vibration will only help in your efforts. Similarly, your body tries to twist, to stretch, to do anything, but Sam firmly holds you down, his tongue and fingers entirely unrelenting.

Even when the ecstasy eventually begins to ebb somewhat, you can already tell the next will not be far behind. Now, it has become a matter of personal pride. No matter how good he may be at this, you are not going to let him reduce you to some quivering puddle without giving as good as you are getting. Oh, no. You are Cindy Fucking South, and you are not going to rest until Sam is screaming that name for all the world to hear!

Or, well, that's what you would be doing. With your throat being incessantly pummeled and an inferno raging in your loins, not to mention the rather restrictive position you find yourself in, you can't exactly deliver your very finest work. You soldier on bravely, however, doing all you can to make his throat fucking as good as it can be, even if in all honesty he is still doing the bulk of the work himself.

But fuck if that boy doesn't have some stamina on him! You've long since stopped counting your orgasms, or even whether any discernible amount of time still separates them. On top of that, you're constantly fighting for breath, but Sam is slowing no signs of stopping. Until, that is, he suddenly does just that. He thrusts all the way into you until his pubes are tickling your nose, and an instant later his shaft begins pulsing with jet after jet of cum, shooting it straight down to your stomach. While he is not exactly screaming your name the way you intended, he is loud enough to let you know he's enjoying himself as well as you are. You would feel some measure pride at this, had it not been supplanted by a rising panic at your lack of oxygen.

Fortunately, Sam does not wait long. He pulls his cock out, trailing a string of cum behind, and rolls off to the side. Neither of you speak, you just lie there panting. Eventually, you find your voice again. "God damn, Sam! The moment this GAME is over, I'm going to need you to fuck my pussy like that!" "Yeah," he responds, still breathing heavily, "Absolutely. Maybe a shower first, though?" You can feel your body is drenched in sweat, and in dim light, Sam's looks just the same. "Yeah, in a minute."

It was more than a minute. In fact, it wasn't until well into the next morning that you took that shower, as you both fell asleep right there, facing opposite ends of Diana's thoroughly abused bed.