Fisting Surprise

We’d been together a few years, after we married we were fooling around one evening after she had some margaritas. She wanted to watch each other masturbate. She was very into it and extremely wet. I had all my fingers thumb included pressing into her opening. After a bit she held my wrist and began to orgasm, pulling me further in as she humped and shook. She had pushed herself to where my hand was in her, her lips were wrapped around my wrist. I held still as she recovered from her climax. She kept sitting up to see my wrist and she just laid back. After a moment she began to make small thrusts and grabbed my wrist again humping against it for another orgasm. Wow! That was a big one I said and she whimpered about wanting a big dick in her.
Things changed from there.