Original Poster: NotOneFuck (http://pastebin.com/u/notonefuck)
Reason this is posted here is because it's not binned in NOF's bin.

>”So, how did I do today?”
>You set the bag of groceries on the table and turn to the eagerly smiling unicorn, who sets her own bag down as well in her magic.
>The smile she sports is infections, as one finds it’s way to your face.
“Well, Star,” you start, making her light up at the petname, “it’s been a full week and you’ve had no slips. I’d say you’re doing damn good.”
>Starlight wiggles in place, a happy giggle rising out of her. “All thanks to you!”
“I told you ‘treat others as you would want to be treated’ is really all there is to it.”
>She nods. “MmHm! I guess I’m not a villian anymore…” She says, trailing off as realization blooms on her face. “I’m… Reformed…”
>Your smile slowly falls.
“Something wrong?”
>She looks away. “A-anon? Now that I’m better, are you going to send me away?” Starlight asks hesitantly, scuffing a hoof across the kitchen floor. “The last few weeks with you have been the best of my life, and it’s not just because of… That…” She mutters with a blush. “I really don’t want to go… I’m not sure what I’d do with myself, having someone like you in my life, only for it all to end.”
>You blink. What is she talking abo..!
>Oh.
“Star..? You think I’m going to force you out?” You ask gently, feeling a bit hurt to be honest. “Why would I do that? I’ve made it clear that I care you for, right?”
>Her eyes shoot up to yours in alarm. “Of course you have! No one has ever done more for me than you have, I don't think anyone ever will. B-but…”
>Starlight stands and walks forward until she’s face-to-belt with you. “B-but…”
>She gently presses her face against your leg, tremors wracking her frame as tears slowly soak into your pants.
>”I-I’m afraid I-I’ll go back to being a twisted pony without you. T-that’ll I’ll be lonely again…”
>The words of the unicorn tear at your heart. She’s been both a student and a lover to you, making the impact twice as hard.
>She sniffles and lets out a shaky, rueful laugh. “Look at me, a g-grown mare breaking down like a filly w-with a scraped leg in front of a stallion. I’ve probably just been a burden to y-!”
“Enough!”
>She recoils, pulling her tear-tracked face from your leg.
“You are NOT a burden, Star,” you say firmly. “I took you in knowing what I was doing ans what I wanted. Although some feelings have bloomed along the way…” You look away, feeling your face heat up. “I stand with my decision. Besides,” you look down at her wonder-filled face, your lips turning upwards. “Friendship is a lifelong lesson, right?” 
>She blinks, hope filling her bright blue eyes. “You mean..?
“How about we make our arrangement a permanent one?”
>It only takes a second for the unicorn to leap into your arms, her lips meeting yours in a desperate haste as you scramble to catch her.
>As the same time you go rigid, in more ways than one, when you feel her cool aura of magic under your belt and zipper, undoing both.
>You pull away from her kiss, taking air into your lungs and soothing the burn in them.
“T-that was fast,” you say, taking another deep breath. “Did you plan this?” You ask in mocking accusation.
>She giggles behind a hoof, vainly trying to hide her mirth and her red cheeks. “No, but I need you. Right now. You won’t turn me away, will you?”
“The mare juice running down my hand and dripping into my boner tell me otherwise,” you say dryly. “But no, turn you away I will not.”
>A quick glance at the window shows that the curtains are drawn.
>Good.
>You lean down, closing your eyes as you catch her lips with your own, much to the unicorn’s delight.
>Slowly, you lower her marehood first onto yourself, groaning into her mouth as you slowly sink into the delicious warmth of your unicorn.
>Starlight shivers and breaks the liplock, leaning back in your arms as a low moan escapes her lips.
>You are never going to not love this. In fac-!
>The front door opens.
>Both you and Star’s eyes shoot open.
“Anon! I came over to see how Starlight was doing! Are you ho...me…” Twilight rounds the doorway to your kitchen, trailing off with her expression falling into a neutral one when she looks in.
>Starlight looks to you, then to Twilight. “T-Twilight? I can exPLAIN!”
>She squeaks when you thrust up into her and bottom out. 
“Leave, Twilight,” you tell her flatly. “Kind of in the middle of a friendship lesson here.”
>Her wings shoot open as her whole face goes nuclear red. “IMSORRYIDIDNTMEANTO…Wait, friendship lession?” She asks, unsure.
“Out, Princess Spergle!”
>”But..!”
>You grab the first thing you feel on the table, a tomato, and wing it at the princess.
>She lets out and “Eep!” and teleports out.
>Fucking Twilight…