Try to gain the Dungeon Master's power

You roll off each other and sit on your knees, side by side, looking at the Dungeon Master. Intrigued, his chin rested on his hand, waiting to see what happens next. He half expected to break your mind right there, and while you still aren't fully sure which you is the real one, you still have your wits about you, and use them to ask a most unconventional question

"Dungeon Master, I want what you have" You speak plaintively, your voice reverberating from both bodies, speaking in perfect unison

"I'm sorry, what?" He asked, confused by the non-specific nature

"I want your power. Please, train me to use your power and magic, as your apprentice, and as your servant."

"An interesting proposition" His face maintained a practiced neutrality. "And what makes you think my power is something that can be learned?"

Your answer surprised him "Because all power is gained. All knowledge is learned, and because if you are all-powerful, than you can bestow your power to others."

The Dungeon Master's hand draws behind his back again "Astute observation, and well put. You are quite the curious little thing. Perhaps there is a mind in there after all, that doesn't just crave depravity and subservience." The Dungeon Master snaps his fingers, and you suddenly find yourself in a classroom of sorts, seated behind a wooden desk. You are finally clothed, sort of. Your long brown hair has been put into pigtails, and you have been put in an outfit that roughly appears to belong to a student, except the skirt only pretends to cover your bare ass and your breasts stick prominently in this tight, thin white shirt. Your duplicate has disappeared, but you are not alone. Behind all of the other desks are male "students", with blank faces, staring solely at you. The Dungeon Master, similarly, has traded his drab dark robes for something finer, looking to pretend to be that of a dean.

"Before we go any further, a test I believe is in order, to determine your real aptitude. Please, write on the chalkboard, three reasons why you think I do what I do with my powers. If you don't know how to spell, that's fine, merely hold the chalk and think of your answer, and it will appear. Now, these answers will become harder with each one, so be careful."

You get up from your seat and move to the chalkboard. You try to pull the skirt down to cover some of your ass, but to little avail. Taking the chalk in hand, you heed the Dungeon Master's words, and consider what would be a difficult answer as the first one.

1) To give mortals a chance to alter their own fate and to choose their own fortune

The Dungeon Master nodded and gave a slow clap "That much is true, I am impressed."

You prepare to write a second answer, bending down at the waist to write below the first response "Don't think that all of your answers have to be so profound though, sometimes the answer may be as simple as what's immediately in front of you. Or, in your case, behind."

Your mind immediately starts to fog over as you feel a pair of strong hands grab your hips. You look behind to see one of the students, naked and rock hard, ready to start fucking you immediately. This must have been what the Dungeon Master was talking about; hard to write while fucking. You could try resisting, but why would you want to? Instead, you invite him, spreading your legs and pressing against the chalkboard with your hands for support. Without a word, you feel his hard dick easily slide into your pussy, still sopping wet from your earlier event. You feel like your body starts to melt around him, and without any thought you start to push back against his hard thrusts inside you. A hard laughter breaks you out of your fuck-trance, coming from the Dungeon Master

"It looks like someone's lost track of their assignment. Guess you're just enjoying yourself too much" This sentence keys you in to the obvious answer, which you struggle to scribble on the board

2) Because it's fun

The man your pussy finishes just as you finish writing, shooting his load inside. You moan with him as you can feel his hot seed fill you up. You start to drift off as the forboding words of the Dungeon Master pull you back

"A lucky moment on your part. Your penmanship could use some work, but it's still correct. Living a life free of the bonds of mortal existence, I find normal pleasures to rather bland and tired. Now that you're here, I dare say I may actually start to enjoy myself again. Speaking of which, it looks like it's your turn..."

No sooner that he said this, you get pulled away from the chalkboard by two of your "classmates". Startled, the chalk leaves your hand, and before you know it, you find yourself facing the floor, straddled between the two men. Still sopping wet, this new man enters your pussy with ease, but remains motionless. He waits, as the other man slowly pushes to enter your ass. Feeling both of your holes stretched and fucked at the same time is blissfully overwhelming. There is little for you to do other than plant yourself and let the two men go to work. These go on for what feels like forever, despite the fast pace they're working at. Your hair gets pulled back, causing you to reflexively arch your back as the man in your ass starts to pound you further, rapidly reaching his climax. Your whole body tightens in anticipation of feeling these two cocks exploding inside you. All three of you start to shout as the moment arrives, with you gracelessly rolling off to the side.

"My my, I thought they'd never stop..." You had forgotten what you were there for, and for a moment you were glad you lost hold of that chalk. You grasp it quickly, fearing something further would distract you again. A singular thought enters your mind that, true to the Dungeon Master's word, appears on the chalkboard exactly as you thought it

3) There's no one to stop you.

"Well well. You continue to surprise me. I may have been playing soft with you, but I still didn't think there would be enough brains in there to accomplish this. You are as observant as you are strong willed, which is good. You may be prone to distraction, but that in of itself may not be such a bad thing."

The Dungeon Master snapped his fingers and you both return to the library as before. This time, you are cloaked in darkened robes, much the same as him.

"Your last statement is correct, and thus you win" He says solemnly "And by granting you powers that I possess, I am inviting you to interfere with my ideas and machinations. I will provide you what you ask, so long as you understand that you are still my servant, not my equal. This is not something I do lightly, and I will take what I wish from you should you prove to be disobedient. Is this understood?"

You nod quietly and obediently "Very Well...Dungeoness. I will share what I have with you slowly, else I fear you will be quickly overwhelmed. Where do you wish to begin?"