[She's starting to tense like an overwound spring as the feeling inside her mounts, growing larger and larger until it has taken up so much space inside her that she feels unable to breathe. She gasps, sucking in a breath... holds it...

—and his next thrust has her careening headlong over that edge, her entire abdomen clenching with wave after wave of delicious, shivering spasms from head to toe, and she keens- a stuttering, gasping, uncontrollable sound. Her body clenches around him, just as her fingers grab a tight fistful of feathers, her toes curl, and her teeth clamp into his shoulder. She grips him so tightly with her whole being that it's if she's trying to become one.]