Caught in My Kink - The Office Manager's Secret Crush

I've been married to my wife for twenty-five years now. We have a good relationship, but it's not the most exciting thing since the invention of fire. A few months ago, I started working at this new company where our office manager, Sarah, is in her early thirties and just absolutely beautiful in a way that makes you want to pinch yourself every time she walks by. Sarah has this air about her; professional yet flirty, confident without being overbearing. We've worked closely on several projects, and I'll admit it, I developed feelings for her. At first, I thought it was just my imagination or some midlife crisis nonsense. But the way we'd exchange smiles during meetings, or catch each other's eyes in the hallway...it felt real. We never acted on anything, though. Sarah has a boyfriend she adores, and as much as I wanted to tell her how I felt, it seemed unfair. Besides, my wife would kill me if she found out, I've been loyal for decades, so why start now? But one day, there was this moment where we were alone in the office late at night, finishing up some paperwork. Sarah had taken off her blazer and rolled up her sleeves. She looked so damn approachable, and I don't mean that in a 'hey can I ask you about my 401k' way. I told myself it was just my imagination, but then I saw her stretching, revealing those perfect curves of hers. The next thing I know, I'm standing behind her desk, leaning over to whisper something, anything, to get the attention off that view and back onto me, but before I could think better of it, I found myself asking if she'd like a coffee. That was a turning point. After that night, I became obsessed with finding excuses to be near Sarah again. Of course, nothing happened beyond casual interactions at work, though I couldn't stop imagining what would happen if things ever got out of hand between us. I've never been one for taking risks or secrets, but this time it feels different. It's not a secret affair, just a crush with some flirting and harmless fun. Still, my conscience won’t let me tell my wife. I don't want to upset her or jeopardize what we have at home. So here's where I am now: stuck between two worlds, loyalty and lust. It’s like a guilty pleasure novel playing out in real life, except it’s only in my mind and occasionally during office hours when the door is closed and she smiles just right.