Married but Exploring Elsewhere

I'm married and we have a good life together, but there's this thing I've been doing that my wife doesn't know about. Last week, I met a woman in her twenties at a bar near campus. She had this look in her eye that said she knew exactly what she wanted. We left the bar together and went back to her place. It was all so spontaneous and thrilling. In her bedroom, we didn't waste any time. I laid down on the bed and pulled off my pants while she undressed quickly. Her breasts were full and her nipples were hard as she straddled me, lowering herself onto my erection. She moved slowly at first, riding me in long, deep thrusts that made my balls tighten with each stroke inside her wet pussy. I reached between us to finger her clit, pushing it gently back and forth until she was squirming against me, crying out as she came hard on top of me. The orgasm sent ripples through her body, her muscles clenching around mine, milking me for everything I had until we both collapsed in a sweaty mess.