Puck may not remember much of his past, but he is confident that he has never been so trusted with another person's body as he is now -- & certainly not in this form. Seraphina's fear of death smells so strongly that it drives him mad, yet she still spreads her legs to grant him easy access. If he could, he'd express gratitude for this willing self-sacrifice. Alas, this form cannot speak, & even if it could, it wouldn't know how anymore. All he can do is accept this gift & force himself deeper inside.
Never has he been able to use someone so unrelentingly. He does not spare Seraphina an ounce of pain. Her last shaky gasp is accompanied by a shudder so violent it shakes the ground, a guttural howl pressed against her bare back as he makes a mess of her ruined insides. The colder her body becomes, the hotter Puck feels. It does not take long for his cock to harden all over again, & he does not stop chasing that high until he is so spent that there is nothing left to give.
Arousal, even genuine pleasure, becomes suddenly irrelevant as he seizes the chance to give in to every foul impulse the cesspool of his mind conjures.
Seraphina is deliciously pliant, perfectly silent. Her body becomes unrecognizable -- bloodied, broken & covered in filth. Many of her limbs are absent by the time he is done with her, some devoured & others strewn across the grass. Guts sprawl from her shredded stomach. At one point, Puck had yanked back her head with a fistful of her blonde waves, tearing the fragile union it shared with the neck.
The ground beneath her has been carved into a Seraphina-sized crater, as if to bury her. Puck spills over her lifeless body more times than he can count, but the final time he does, he collapses beside her false grave, breath catching, ears ringing. His whole body buzzes with satisfaction. Not once does a flicker of doubt or guilt plague his mind, only bliss. He lies there for what could have been a few seconds or several hours ; he can't tell the difference, really.
Then he yawns, stretching out his limbs languidly before hauling himself on all fours once again. The wolfish creature takes the time to use his tongue on Seraphina's carcass, cleaning it of the mess he'd made with a tenderness ill-fitting for his body. The temptation to eat her makes him itch all over, but he resists, fulfilled by the carnage he'd already caused.
Once the corpse is cleaned properly, Puck sheds his fur & returns to his humanoid form. He recovers Seraphina's head from where it had been discarded, cupping what remains of her face.
❝ You look more beautiful than ever, ❞ he whispers affectionately, kissing the exposed bone of her forehead. Then he grabs the head by its hair &, without bothering to tidy himself or even seek out a garment to cover himself, he makes the trek back to camp for a word with their dear old friend Withers.