Stranger in Bed Tonight

I’ve been married for ten years but last night I met a stranger online who was so different from my husband. We talked and he invited me to his place. The moment the door closed, we were all over each other. He’s younger with a more muscular build than my husband. His fingers slipped inside me before our clothes even hit the floor. It felt like being a young woman again, wanting everything and nothing at all holding us back. His cock was hard as steel against me; I guided him in deep, feeling every inch stretch me open. We barely paused for breath through it all, my body craved more of his touch than anything else could give. Do other married people do this too? Is there something wrong with wanting a little thrill like that?