Futa Rarity on human male

 Rarity's thrusts are as gentle as can be. Her massive cock lies atop your own, hiding it from sight, dwarfing it by comparison, but you keenly feel it every time her smooth shaft rubs against yours. You watch, transfixed as the unicorn effortlessly stimulates you, eyes locked on that enormous pillar of virility. Rarity smiles, noting your appreciative gaze, and murmurs what a good boy you are. In fact, she thinks it's time to give you a reward.

Her smile widens slightly, eyes dancing with dominant affection as she slowly, surely pushes her way inside you. She takes her time, giving you plenty of time to adjust, but the throbbing, tingling pleasure electrifies you and you shut your eyes tightly anyway, fists balling reflexively at your sides. Rarity gasps slightly as she bottoms out inside your welcoming hole, and leans forward to kiss you tenderly on the forehead, again whispering what a wonderful pet you are, how she always looks forward to filling your ass with her cum. She goes to work, giving you exactly what you crave in long, unhurried strokes. Every time she sinks into you, you can't help but let out a moan, feeling just that much more -complete-.

Rarity's heavy balls slap against your ass time and time again, brimming with potent unicorn cum, and you are torn between wanting the moment to last forever, and wanting all of her seed inside you as soon as possible. Every nerve in your ass is on fire with raw pleasure and begs for more, throbbing tightly against the mare cock filling you so completely. Rarity props your head up gently with her magic, giving you a better view, and smiles proudly. From here you have are afforded a perfect view of the immaculate futanari shaft ravaging your depths, disappearing inside your tight asshole again and again, stretching you with its size, claiming your body as the unicorn's rightful property. You give a long, low, whorish moan, wanting more, needing more, needing your mistress to fill you with her hot, thick, salty pony cum. You meet Rarity's eyes with your own, wordlessly begging.

She obliges. Her strokes speed up, becoming less and less gentle and more and more commanding. The rest of the world seems to simply fade away, becoming unimportant, as Rarity's thick marecock becomes the center of your entire existence. Her pace becomes increasingly uncontrolled, almost feverish, and your body goes numb from the sensory overload when she hilts herself inside you with a feminine cry.

Despite your overhelmed state, you feel every glorious inch as her prick swells and begins spurting inside you.

When Rarity's balls finally empty, she pulls free of you with a wince before unceremoniously collapsing to the bed beside you. A hoof absently reaches out and strokes your hair affectionately, patting you on the head, and then the unicorn is out cold. Her magic, deposited so very deeply and so very richly inside you, suffuses your entire body with a soft, gentle, pleasant warmth that easily overrides any lingering discomfort. You breathe deeply, relishing in the feel of a piece of Rarity's very essence running through your body.

If being Rarity's pet human is wrong... then -fuck- being right.