"Mustang" (Horse cock)

After walking around her collection, Myra stops at easily the biggest thing out of all the dildos you've seen so far. You hope that that thing isn't what she's chosen for you, but your hopes fade away as she grabs the enormous toy in both of her hands and lugs it over to you. The dildo is shaped oddly, resembling a horse's penis, veins, bumps, and everything. It's a worrying 20 inches in length and around 6 in diameter with a pair of balls hanging by the base. By no laws of nature is that thing going inside of you, but Myra has a tendency to ignore those kinds of things.

After bringing the cock log over to you, she says "Oh, this will be fun! This old friend is called "Mustang", capable of breaking any man or woman unfortunate enough to have it inside them. It's made of pure black rubber and is the biggest thing I got in my collection. It can even be used as a weapon! Now, I think it's fair to say that this isn't going to be the most comfortable feeling in your life, but when this thing is all the way inside you, you'll feel just great! I mean, if you've worked with combat models, I'm sure that this will be a walk in the park for you!"

Myra takes the bottle of lube in her hands, ready to spread it all over the toy, but stops right before and says "Hey, you know what? Let's do this naturally! Spit is just as good of a lube as any, so I think I'm gonna make you work for your ****. Open wide buttercup! REALLY wide..."

Your eyes shoot wide open as you hear her say that. In some world, your ass might have taken that thing, but not your mouth! You watch as Myra takes the floppy rod over to your other side and stands over you. The table is at Myra's crotch height, making it easy for her to shove ol' Mustang in there.

Myra takes the gag off of your mouth and commands "Open!"

You audibly gulp, but shakily open your mouth and stick out your tongue. The tip of the black rubber monster presses against your lips as the 6-inch wide head tries to creep its way into your mouth. You find yourself trying to open your mouth wider and wider, beyond what you ever thought you could do, until the head of the dildo finally presses its way between your lips. After all that struggle, Myra starts slowly sliding the rubber toy deeper in your mouth. After only a couple of inches, you already start gagging, as the toy rips your jaw to its limits, but as you have no way of getting out of this, Myra keeps pushing on.

The inhumanely large dildo finally makes contact with the back of your throat, making you gag and **** out loud.

Myra says "Oh come on baby, we're not even halfway done yet! Get that jaw and throat relaxed and this thing will slide in without a problem. It's either that, or you're taking this in your ass without lube, and I'M not feeling like writing a casualty report today."

This makes you slightly more worried, but you keep trying to get as much of the toy inside you as you can. To ease you in better, Myra starts thrusting the toy in and out of your throat with the 6 inches that are already inside. After a while of slobbering over the toy and getting adjusted to the size of it, she starts sliding it slightly deeper with every thrust in. Slowly but surely, this is the way that Myra gets the big ass horsecock down your gullet. After getting it halfway down your windpipe, you can't help but to gag and **** nonstop, letting tears form at your eyes and drool spill down your face.

"10 inches! Good job, but there's still that much to go, so strap in cowboy!" Myra says while increasing her speed of fucking your throat.

After a long and painful 30 minutes of edging the dildo closer and closer to being balls deep in your throat, Myra forcibly shoves the last few inches down your squirming throat, making the heavy rubber nuts hit you in the face. Your mind already feels blank for enduring such a grueling throat fucking, but having swallowed the entire shaft of the Mustang and somehow not dying, fills your heart with a feeling of completion. Also, having this rubber monstrosity fully inside you makes your cock jump up in pleasure and get erect.

Myra looks over, sees this, and says "Getting hard from having your throat stuffed by a 20-inch horse cock? That's a first for me. Well if you like it so much, I won't ruin your fun just yet..."

After saying this, Myra starts jamming the entire length of the dildo in and out your throat, making you thoroughly coat it in your spit. A giant bulge on your throat moves up and down, going down to your belly button at its deepest. After giving you a few punishing thrusts, Myra pulls the toy out of your mouth, letting you take a nice deep breath after being suffocated for the biggest part of that whole experience.

She says "You know what? Since I'm feeling extra generous at the moment, you can live this one out without the gag. I wanna hear your screams as this slobbery mess of a fuckstick penetrates your guts."

Myra takes Mustang and brings it back over to your exposed ass, ready for the real fun to begin.

Myra takes a firm standing position and points the end of the black rod at your asshole. She starts moving it in closer and pressing against the entrance. You feel the pressure climbing, as Myra pushes the tip against your asshole harder and harder, until it finally pops in, making your sphincter 6 inches wider than it just was. You let out a loud gasp and grit your teeth while trying to brace the pain.

Myra says "See? Not so bad, is it? Your ass seems really hungry for this thing, seeing as how it swallowed it up so easily. Let's not keep it waiting then!"

With a slow push, Myra starts sliding the toy deeper in your rectum, stretching it out and making you slightly hyperventilate as it goes in. The thick shaft quickly reaches your prostate, making your dick explode with a sudden rush of pleasure and making you moan from the sensation. As the painfully big rod covered in your drool keeps busting its way through your guts, you start moaning and moaning even louder. It's only halfway in, but your ass already feels destroyed from its thickness.

Inch by inch, the dildo travels further and further up your rectum, until it's finally all the way inside your gaping ass, making you let out a scream. You can see the giant bulge on your stomach made from the dildo stretch up to your chest. Your cock is practically oozing precum as the pressure on your prostate is too great to ignore.

Myra then says "Well, so far so good. Taking it all in with the first try is commendable, but we'll see if you can handle a pounding like no other. I'm not cruel, if you cum, I'll be done with you, but you decide if that's something that you want or not. Now, let's get started!"

Myra starts pulling the highly textured horse cock out of your ass, grabbing it by the balls. She pulls it about halfway out, before quickly sliding it in. Your ass is still getting used to the hugeness of the dildo, so it doesn't slide in as smooth as it should. Myra gets slightly annoyed by this and starts using more and more **** in pushing the toy deeper inside you. Reaching the hilt of the shaft, you let out another yell, but try to compose yourself. The immense pressure inside your anus is hard to bear with, but you manage. Myra begins fucking you with the dildo.

After a good 30-40 minutes of pushing the long, floppy toy in and out of your ass, the walls of your anus start becoming looser and more inviting to the stallion cock. You moan each time the heavy rubber ball shit your ass cheeks and the dick bottoms down on you. Myra has increased her pace steadily during this time, not letting you get a moment of rest from the onslaught of your insides. After pushing herself to the limits, Myra is ramming that horse cock in and out of your ass as fast as she can. She watches as the bulge in your stomach slides up and down as she fucks your boy pussy like an old ex. The stimulation on your prostate is immense, and you can already feel yourself get close to the edge of orgasm. You actually start deriving more pleasure than pain from this whole experience, so ending it would be a shame, but there is little you can do to stop yourself from cumming at this rate.

After a few more minutes of hardcore ass pounding, your at your very edge. One last powerful thrust from Mustang is all it takes to make your cock tense up and shoot out a giant stream of jizz all over yourself. Some of it lands on Myra, some even behind her, further accenting the strength of your orgasm. You let out a gut-wrenching scream as you cum, making Myra push the dildo in your ass as far as it can go. However, Myra underestimates her own strength, and shoves the large hanging balls up your ass as well, making you completely swallow the dildo inside your rectum. This added pressure gives you another instant orgasm, making you scream and cum again, just as hard as the first time. Myra sees that your into this and lets you ride out the glow of your orgasm. After about a minute of cumming, you finally release your tensed up body and start breathing heavily.

"To be honest, I didn't expect you to handle that but look at you now - covered in cum and happy as can be. Let me just get this old thing out of you..." Myra says and reaches her latex glove covered hands inside your ass, grabbing the shapely balls of the toy and yanking it out with one swift pull.

Your sensitive ass quivers from the toy leaving it. Your body feels a lot more empty like it's missing a vital part of itself.

Myra says, finishing off this part of the test "Don't worry, if you want, we can still play with Mustang later, but now it's time to move on..."

She puts the gag back on your mouth and thinks about what she wants to do with you next.