One of my most memorable is...
We were in our master bedroom. I laid on the bed and watched as she sucked on my buddy's dick. Then, after a few minutes, she told him, "I want that in me!" So I watched as she laid on her back and he got between her legs and slid into her extremely wet pussy. They fucked for several minutes and after his pace reached a crescendo, he thrust his hips into her several times, each accompanied by a clearly audible deep grunt. He filled her with his cum and collapsed onto her.
A minute or so passed and he got up. Then, looking to her right, she looked me in the eyes and said, "Now I want you to fuck me like you know how to!" I got up off the bed where I was lying next to her as I watched them fuck. I positioned myself between her legs and shoved my rock hard cock into her with a passion! I began fucking her harder and harder and she expressed her approval with her moans. It wasn't long and I filled her full of my load, adding to the silky mess between her legs. Mmmmmmmmm, the good ol' days of having a shared hotwife!!!