Don't move a muscle! (Head over couch)

If you stay completely still, there is a possibility that Sia might not notice you, so that's what you're going for. You try to relax as best as you can and stay as quiet as possible. You can hear the couch creak some more, but then it stops. Complete silence floods the room once more. You try to stay as composed as possible, but some worried breaths manage to escape your mouth. You stay in silence for about 30 more seconds and decide to look up, to see if Sia's moved on yet. As you tilt your head upwards, your mouth opens automatically as well. You can't see anything specific, but you think you see an outline of something dick shaped. Just then, something unexpectedly drips into your open mouth, catching you off guard. It falls in your throat, making you gag out load. You recognize this taste... It's precum.

You quickly realize what you've done and shove a hand over your mouth to dampen the noise, but it's already too late. Two hands grab on to the sides of your head and it gets pulled up and over the backrest of the couch so that you're facing the ceiling. You clearly see a face looking down at you, only inches from your own. You stare anxiously, knowing that you've finally been caught. Sia's leaning down, looking down at you and standing on the cushions of the couch.

"Peekaboo!" A quiet voice comes from the silhouette standing above you. "There's no use in hiding from me. I just wanna have some fun with you and seeing as how we're standing right now, I think I know exactly how I wanna do that..."

Sia moves her hands back, so that your head moves a few more inches back as well, and dangles over the backrest. She gets out of her leaning position and stands straight up. In this position, however, her twitching cock seems to line up perfectly with your mouth. You can already tell where this is going, so resisting is probably a dumb idea. You open your mouth as wide as you can and await Sia's cock patiently. She gets a better grip on your head and, without much warning, Sia riles back her hips and unleashes a powerful thrust. Her weighty balls smack against your face and you instantly feel her entire giant shaft embedded in your throat. You start gagging from the sudden fullness in your mouth and try to recoil, but Sia's hands hold your head tight, leaving you no room for escape. The salty taste of her precum covered cock quickly fills your mouth and throat.

She says "Ohh, now that's what I came here for. Just let me enjoy this for a moment..."

Sia leaves her massive dick planted in your throat for a good minute, before finally pulling back and letting you breathe. However, your moment of rest is quickly over, as she shoves her 12-inch hose pipe back down your quivering mouth hole. Sia wraps her hands around your delicate throat and begins jerking herself off. Her dick makes a noticeable bulge appear on your throat, so this is quite easy to do. She starts mixing the two actions together, thrusting in and out of your mouth while jerking herself off in rhythm. You gag and **** loud, spit starts running down your face and your arms, legs, and torso start jerking, fighting the feeling of Sia's dick infiltrating your throat.

Sia notices your struggle and pulls out for a second, to say "Hey, I know it's not easy, but it's worth it, trust me! Here, let me give you a taste of your reward if you just play along..."

She inserts the tip of her dick in your mouth and shoots a huge load of her sperm inside, quickly filling your mouth to the brim with cum. You greedily swallow her spunk, tasting its rich taste. It's sweet, but a bit bitter as well, quite delicious actually. Swallowing her thick load, sends a horny rush through your body, getting you hard almost instantly.

"Now, will you stop whining and just take it like a big boy?" Sia asks with her hushed voice.

You stick out your tongue and nod your head. Sia quickly gets a hold of your head again and starts inserting her dong in your mouth once more. You still taste bits of cum on the tip of her dick, so you quickly lap them up with your tongue before it slides too deep. Soon enough, her cock makes you gag again, but you try to control yourself. As her entire foot of meat slides back in your gullet, she resumes her previous agenda of jacking off and thrusting inside of you. You can't help but gag now and again, not to mention the spit that gets coughed up all over your face, but at least you sit still as best as you can as your mouth gets used as a fleshlight. You start feeling slightly good from being the bottom bitch in this situation, so you start jerking yourself off. Being fucked in the throat and jerking off gives you an amazing rush of pleasure throughout your body.

Sia constantly increases her thrusting speed, pretty much jackhammering your throat at one point, before slowing down a bit, but quickly resuming. Your throat already feels numb and your gag reflex seems to be pounded into submission, as her dick freely slides to the bottom of your throat and back with ease. This allows her to go even faster, beyond anything you've ever seen. As Sia's speed and **** increases, so does the anticipation of her orgasm. You keep jerking your twitching dick, getting close to your own orgasm. Her grip tightens around your throat, and with one last powerful thrust, she slams her hot girl cock deep down your throat, grinding against your mouth. She grits her teeth and lets out a deep moan.

You feel her dick tense up and get red hot. She then unloads a giant load of cum straight down your throat, twice as big as the one that you got before. All of her sperm floods straight down to your stomach, filling you up rather quickly. She keeps grinding against you as more and more of her cumshots spray deep inside of you. The feeling of this much cum entering your body gives you an even bigger rush of pleasure than before. You rub your cock with vigor and shoot a giant load in the air, all while swallowing her Sia's plentiful loads non stop. After minutes of cumming, Sia finally pulls back and plops her now soft, but still huge cock on your face. It's still hot and pulsing, with dribbles of cum leaking from the tip and down your head. You swallow the remaining semen in your mouth with a big gulp and breathe heavily.

She says "Well, didn't I tell you it would be worth it?" and giggles to herself.

As you both take a second to rest, the lights in the room come flickering back on, engulfing the room in brightness. It takes a second for your eyes to adjust, but once they do, you can take a look around. Well, kinda, since one of your eyes is still covered by Sia's girthy cock resting over it. She picks her member off of your face and you bring your head back over the couch. Your neck hurts a bit from the position you were **** into, but it's nothing drastic. You stand up and turn around to face Sia. She's already taken a seat on the couch, letting her soft cock dangle between her legs. You walk around and take a seat next to her. She looks over to you and smiles. She starts playfully messing up your hair with her hand, like an annoying big sister. You both laugh and you lean into her shoulder, taking a little rest.

Then the speakers turn on and you hear Alan speak up. "Astounding test guys! Interesting strategy, but nothing can save you from Sia's grasp. I was actually betting that you'll be found quicker, but oh well. Either way, good job, and I guess we'll see you in the next test. Off to your rooms now."

Sia gets up, waves goodbye, and leaves for her room. You do the same.

You got the "D for effort" ending with Sia.