My Ex-Wife and I Rekindled in a Way That Shocked Us Both

I've been teaching at this university for nearly three decades now. When I met my ex-wife, Lisa, back when she was a student here, we were both swept up in something unexpected. We had the usual reasons, an affair that should have never happened, but did, under the guise of passion and mutual understanding. The marriage lasted long enough for her to graduate with honors and us to try at parenthood before reality kicked in and the facade crumbled. We tried counseling, we tried a breakup, and every attempt only led us back to each other's arms out of habit more than anything else. Until finally, after 15 years, I decided enough was enough and filed for divorce. It wasn't easy on either of us, but it felt necessary. It's been about three months since the final papers were signed. Lisa moved away with our daughter to start fresh, and I began to settle into a routine that doesn't include her anymore. But then last week, out of nowhere, she called. Said there was something important we needed to talk about face-to-face. My heart leapt at the thought, could it be? Had she changed her mind? We met in an empty classroom after hours. The walls were lined with textbooks and notes, but the silence was filled only by our shallow breathing as we sat across from each other. She looked different somehow, tired even though she'd been busy trying to restart her life elsewhere. Yet something sparkled there too. She started off telling me about new friends she's made, how well her daughter is adjusting to their new school... but then the conversation took an unexpected turn towards us. We reminisced briefly over old memories and laughed at silly inside jokes before a comfortable silence settled between us again. Then it happened: out of nowhere, I felt this urge, this desire that had been dormant for so long. I'm not sure what possessed me, but before I could think better of it, my hand found hers under the desk and held tight. Her eyes met mine, a question in their depths, but also something else, longing? The next thing I knew we were kissing on that very spot, hands roaming freely as if no time had passed at all. Our clothes came off faster than they should have. Soon there was nothing left between us but skin and the undeniable pull of gravity. The room filled with the sound of skin slapping against skin, grunts escaping our lips without filter. Lying naked on that cold floor, bodies slicked with sweat, I felt something akin to release and relief mixed in equal parts. It was like coming back home after a long absence, only this time there was no regret or guilt hanging over us as we lay panting amidst discarded clothes and lingering desire.