The enchanted dildo

You open the drawer and look at the diverse collection of toys but before you can choose any your hand moves on it's own to a small purple Koopa shell shaped object. Just touching the soft surface sends a shiver of unnatural pleasure through you. Despite your better judgement you pick it up, some how unable to resist it's allure.

As soon as you have it in both hands it begins to grow, elongating and morphing until it is over two feet long. Your eyes go wide... spikes run along the new form’s length as well as around the edge of the head which is conical in shape and at least four inches diameter. You whimper gaze upon a perfect copy of Bowser’s penis.

This magic dildo appeared in your collection about a year ago and you still don't know how it got there. The thing transforms into whatever penis you want to fuck most when you hold it. You think that's how it works, it only appeared after your tastes 'diversified' so there is no way to be sure. It has never transformed into a human or toad penis… just goombas, koopas, and various other exotic cocks that always seem to fill your fantasies.

You didn't start out with such cravings, you blame girls night and Daisy. It started out as innocent lesbian fun... but then you started swapping dildos, and she had a Koopa one... and things went down hill from there. After what felt like too little convincing she got you to "go slutting" with her. "They can't get you pregnant so it's fine!" "We can wear shygal masks so they don't recognize us." etc. And so you went... Despite how exciting it was you only ever gave hand jobs, and the occasional blowy. Daisy however, was never so restrained or picky about partners enjoying every shape and flavor your kingdom had to offer. Thus you have seen and craved so many dicks and this magic toy has let you experience every one of them inside you.

That is except one.

Since seeing Bowser’s monster of a cock last time he kidnapped you.... you have been steadfastly avoiding this toy. You even went as far as to have a smaller replica commissioned, it didn’t come out the right shape, but it was spiked and manageable. This thing in your hands, however, is perfect… too perfect… you know in your heart that even if this doesn’t break your pussy, it will break your will. There is no going back to normal cocks after this but despite your fear your body seems to have other intentions.

Placing the beautiful koopa cock monolith on the floor lets it suction into place. It glows and pulses calling to you... You begin to stroke it with your hand, feeling the soft points and veins along its length. It is so wide that you need to use both hands to completely circle it. As you work the shaft, a lubricating liquid begins to dribble from the tip and the beast begins to grow warm and then hot in your grip.

No other shape it took heated up this much... it must be mimicking the real thing… the hot surface doesn't burn, in fact it feels good. You want to feel it on the inside, the thought spurs you to action. Straddling the now slick shaft, you check your own moisture by spreading your lower lips apart. Fluid drips down in a torrent splashing onto the dildo, punctuating your readiness.

Slowly you lower your self, the conical tip making it easy to start but as it widens your flower has more and more trouble taking the girth. Gravity assists and though tight you make progress inch by agonizing inch. For each moment of painful stretching you are rewarded by pleasure that more then compensates. The spikes in particular feel amazing… not sharp but soft and your too tight pussy makes sure you feel every single bump. It’s too much, you are over half a foot down but already you are reaching you climax. You start to try to pull back up but in your haste you move to fast.

The stimulation overwhelms your senses and sends you over the edge. You cum, screaming as your legs grow weak stopping your upward progress. With no strength left to oppose your weight, your legs give out letting gravity take over as you plunge downward. Your orgasm is lengthened by your now quick decent on to the massive Koopa cock. You bottom out painfully as the tip hits your cervix, but being stopped brings a much needed breather. Gulping in air you moan with pleasure and pain, which are starting to blend together in your head. So good... so full... you have never been this full. Startled, realization that you haven't touched the base hits, you are not sure how much more of the length is left but...

You desperately try get your leg under you but in vain. The motion causes the tip to line up better and it starts pushing through into your womb. No... No… it can’t... it's not supposed to go in there! Again your panic cause you to move too quick and with that last jostle your inner most gate gives up allowing the invader in. You slide the rest of the way down to the floor reaching your second body spasming orgasm on the way there.

You must have blacked out for a short time because darkness gives way to light as you blink your eyes. As you slowly regain consciousness you feel the 'fake?' cock throbbing inside you. It seems to have a heartbeat that reverberates though your core. Some how you can tell it wants you to move, your mind numb and body still supernaturally horny even after two orgasms complies sliding your knees under your ass before pushing up.

Ascending to your maximum kneeling height feels wonderful but even at the peek you still half a foot of cock in you at least. Escaping isn’t what the dildo wants anyway and you find you don’t either so you relax your muscles. Gravity bring you back down before you lift your self up again. Your hips speed up, getting into a rhythm as your pussy conforms to the shape of Bowsers dick. You feel as each thrust rearranges your insides to better fit the monster you can see it’s studded shape deforming your stomach.

With each stroke the pleasure increases, with each orgasm any idea of stopping gets further from your thoughts. After what feels like hours the magic penis has finally had enough. With surprising **** the cock shoots its load into you, the thick burning hot cream fills you and with one final screaming orgasm you begin to pass out. The last coherent thought you have is... love... that was perfect... but no normal penis will ever satisfy you again...

You wake up on the floor in a pool of suspiciously real looking cum with a small purple Koopa shell toy inch’s from your gaping stretched cunt. You wonder how long you were out…