Up your... boi-cunt.

You are gulping and gasping for breath now, part of you wanting to drop to your knee's and pleasure him. Part of you wanting to run away, part of you afraid of something that you couldn't understand. Was it fear of your own unnatural desires, or the fact that this person couldn't possibly be your brother Anton.

Suddenly you are facing the rough stone wall, your trousers slithering down your legs as the cold clammy air on your naked flesh makes you tremble. Looking back over your shoulder, you watch Anton's big hands fondle and squeeze your firm round ass cheeks. "Boi-cunt it is then." He chuckles lewdly, you feel intensely naughty at giving up your taboo hole to your brother.

"No please this isn't right." You are shocked at how pitiful your voice sounds, as his fingers slip between those cheeks to caress your tight pink pucker. You inhale sharply as a smooth thick jell is rubbed over that wrinkly flesh, soon your anus is quivering as that jell begins to make your flesh warm.

"No please..." Anton mocks as his finger invades your aching hole, wiggling its way up inside of you. "This isn't right..." You blush hard in humiliation at being so openly mocked, looking back into the leering face as Anton slowly fingers your quivering fuck hole. "That is NOT what your boi-pussy is saying little brother." The air is soon filled with the 'Shlop Shlop Shlop' sound of that thick finger pumping in and out of you. "Father would be so ashamed if he saw you like this..." Anton taunted with a smirk, even as his finger was suddenly replaced by something much thicker. Your face contorts in agony as that big purple cock head pushes into your opened hole, still its far to big to go in easily your sissy boi-cunt resisting for a split second. A fiery pain blazes inside your anus, as that hard organ forces its way past you resisting gates.

"Ohoho gods! Its to big... please I can't... take it..." You squeal out loudly, even as your sissy pussy makes a liar out of you letting that huge fucker slip inside. 'Slurp!' You grunt out in pain, even as Anton's hard fucker slides balls deep into your butt-hole. "Oho fuck Anton!" You squeal out as his body begins to rock back and forth, driving his huge organ in and out of you with a slow steady rhythm. Over the next twenty minutes he rides you more and more lustfully, the hard fucking pushing all your doubts and fears right out of your head. Even your fathers cryptic warns don't matter, as those strong hands grip your hip's pulling you back as he crams that throbbing hard on deep inside of you. "Ummm fuck yeah Anton... fuck me... fuck me hard." You find yourself begging now, as your true self at last shows its self to your brother.

"Oh yeah there it is... there's the slut." Anton laughs cruelty as he reaches around your body, grasping the tip of your hard organ in his fingers. Rubbing it playfully as his mighty cock caress's that sissy gland in your ass, it doesn't take much and suddenly your filling his palm with your thick greasy cum. Once you finish orgasming, he lifts that palm to his own mouth and licks your cream up greedily.

"Wow I didn't think you could get him to do it." You twist your head around in shock, looking at your smiling brother standing there watching from across the room. 'Wait what? How can Anton be in two places at once?' Glancing back behind you, at the grinning face in confusion. Watching in silent horror as that face morphs and changes, standing behind you is a tall, gray-skinned humanoid. Whose thin hairless bodies made him appear, to your eyes, sexless, it's head was bulbous, with a formless faces and bulging eyes that were a pale yellow hue and lacked visible pupils. And then as you watched frozen in terror, it slowly turned into you!

"Wha... wha..." You stammer as your own double twists your arms up behind your back, before frog marching you deep into the old dungeon. Tossing you into a old cell roughly, as he stands there grinning wickedly at you from the doorway.

"What a horny fool you are." Your double laughs in your own voice, as you climb to your feet feeling the hot cum leaking out of your ass and down the back of your legs. "You are going to be fun to play." The creature giggles as he slams and locks the heavy wooden door of your cell, rushing over you peek out the small barred widow. Watching as your double and Anton put out the lamps as they stroll away, leaving you in utter darkness in the under ground prison. Suddenly you hear a weak voice from the next cell over, you can't see him but you know that voice well.

"So they captured you to little brother."

"AAA... Anton?"