Hermione merges with Luna’s cock

Luna thrusts deep into Hermione’s stretchy innards, but she’s not satisfied. She swiftly taps her wand on the side of Hermione’s torso and casts a spell, “Engorgio Peni!”. Instantly, the two girls start to feel the change. Luna’s cock swells substantially within Hermione’s elastic belly, evoking a yelp from Hermione and an increase in Luna’s libido. She thrusts harder, and with her engorged cock she pushes even further into Hermione’s accepting body.

Now at 8 inches, Luna’s dick reaches all the way to the base of Hermione’s ribs. She’s thicker, too, about the girth of her upper arm, and the distortion it inflicts causes Hermione to go crosseyed. Luna casts the spell again, invigorated by her increase in size, and Hermione tries to splutter “no” before being cut off by another inch of flesh piercing her, and her cunt being stretched to fit Luna’s newly pool-noodle-wide penis.

Hermione should be cumming by now, but every new burst in size ironically seems to set her back at square one in terms of finding release. She is tantalized by the growing cock, always wanting it to be bigger and yet at the same time **** for it to remain the same. Luna, however, has no limitations. She happily begins a percussive performance with her wand on Hermione’s side, accompanied by her repeated casting in a loosely melodic song.

Another inch, and another, and another… Hermione loses count as her vision goes purple, but she feels it dig it’s way through her until it reaches her sternum, then the base of her neck, then the back of her throat, stretching her neck to the width of a person’s thigh - and that’s the thin end of Luna’s cock. Halfway down her belly, her curves are straightened by the bulging dick which can barely move within her, and her cunt is warped to the **** where Luna is jammed within her.

As Hermione finally reaches climax, she finds that the massive cock is actually crammed so fully within her that there is nowhere for her cum to go. Instead, the pressure simply builds, making her writhe in exponential orgasmic pleasure as she simply cannot get her own cum out.

Luna has paused her casting, and is panting from bearing the weight of her own throbbing dick. She is about to cum too, and the tiny trickle of girl-cum which escapes Hermione’s plugged pussy is just enough to top her over the edge. She thrusts one last time, grunting a sexual war cry and lifting Hermione high with just her dick. Feeling her own body weight add to the pressure only makes Hermione try and fail to cum harder, spasming wildly upon Luna’s cock.

Whether by mispronunciation or over-casting, Luna’s spell begins to have an additional effect. As the two girls cum together, Hermione wraps her legs tightly around Luna’s waist and her arms around her own neck. She grips herself and Luna so tightly that they don’t notice her limbs quickly start absorbing into her and Luna’s skin, swiftly vanishing into fatty flesh. A greater bulge forms at the base of Luna’s dick, stretching Hermione’s crotch even further. As it pushes through her lips to stretch her belly, Hermione’s cunt folds in on the cock, blending with it seamlessly. Her hips seem to move with the bulge, though in reality her pelvis has liquified within her and her legs have become one with Luna. The bulge continues up Hermione’s torso, distorting her body and leaving behind nothing but the veiny bulk of a slightly thicker cock.

The bulge swells under her tits, which seem to flatten as her chest inflates behind them, and the mass of semen starts to fill Hermione’s mouth. She reflexively snaps her mouth shut to keep from spitting hot jizz over everything, but it seeps up her sinuses and begins to flood from her nose. The sudden discomfort makes Hermione open her mouth, and Luna’s cum erupts from her face like a firehouse. Hermione’s release ends up being the same as Luna’s, and they both finally cum with full ****.

Hidden under the torrent of sperm, Hermione’s head bloats and becomes a fatty and featureless cockhead, spewing cum mindlessly as her consciousness fades. Cum flows freely, caking the bed and walls in their thick slime. By the time Luna is spent, Hermione is nothing more than a flaccid 3ft cock with a 6 inch girth and the mental capacity of a dumb rabbit.