You watched your wife through the half-closed door as she flirted with her date. They spoke in hushed tones for a moment, then she reached up and kissed him. She unbuttoned her loose-fitting shirt to reveal the pink lingerie she had picked out especially to enhance her alluring curves. You heard the man say “very nice. very nice”, then he slid a hand into her panties. Your wife gasped, then fell into him, and they disappeared from sight towards the bed. What followed, from what you could hear, was the most satisfying and intense sex your wife had ever had by a long, long way.