Luna fists as deep as she can go

With growing awe and curiosity, Luna pushes further. She folds her arms into herself, sinking up to her elbows inside her stomach. Hermione feels sick watching her friend contort beyond humanly possible, but she can’t keep her eyes off of her exploring friend. Luna exhales as though she’s squeezing her lungs, though in reality she’s feeling more and more sensitive flesh within her.

Luna wedges her arms deeper into her belly, bending over to cram her elbows in. Hermione gasps and covers her eyes for a moment before peeking through a crack with fearful and carnal intrigue. Luna barely looks human now, with her shoulders squeezed across her hunched chest and her arms vanishing into her center halfway down her upper arms. At that point, Luna can’t reach any further, her body simply can’t bend any more. She stands there and breathes heavily while she gathers herself, and then goes to stand up.