Taking turns

I am sitting behind my wife, whispering in her ear. I describe what I see. The man from the other couple is down on her. Her legs are wide. Her hips move as her hands rest on the back of his head. I tell her I can see his tongue on her. I whisper to her that this is what I have been looking forward to all week since I got their first message. The other wife is nearby and focused on watching her husband. We catch eye contact and kisses me. She says "me next". I ask my wife if she wants to watch when it's my turn. She doesn't answer but I can tell she is getting closer. The sound is panting and wet. I see my wife's abs flex, she leans forward to watch him. He presses his face against her.