When Lily first joined the company as an intern, I knew her only as the daughter of my old friend, Mark. She was just 19, fresh out of college, and still had that youthful energy, the kind that made the office feel alive again. She was stunning, long blonde hair, smooth skin, a body that any man would be drawn to. Tight little waist, curves in all the right places, and those legs that went on forever. I couldn’t help but notice her. Every time she walked past my office, it was like my heart would skip a beat.

I’m 40, married, and honestly, things at home have been stale for years. I love my wife, don’t get me wrong, but the spark just isn’t there anymore. We’re more like roommates than lovers. So when Lily started working here, it was like something inside me woke up again. I knew I shouldn’t be thinking about her like that, especially with her being Mark’s daughter, but I couldn’t stop.

At first, it was just glances. She’d smile when she passed my office, or maybe give me a little wave if she caught me looking. Innocent, really. But it wasn’t long before I found myself lingering a little too long around her desk, striking up conversations, making excuses to check in on her progress.

She was smart, quick to learn, but so damn naive. She trusted me because of her dad, saw me as some sort of mentor. And I knew I could use that. I hated myself for even thinking about it, but the more I was around her, the more I wanted her. The way she’d dress, tight skirts, blouses that showed just enough cleavage to make me ache, it was like she was teasing me without even realising it.

So, I started creating situations. Small things at first, making sure she stayed late to finish projects, telling her that her work needed extra attention, something she’d have to do after hours. Every time we were alone, I’d inch a little closer. Just brushing against her when I walked past, leaning over her to "help" with something on her screen. I could feel the tension building between us, and it wasn’t long before she started picking up on it.

One night, after the rest of the office had gone home, I made my move.

She was sitting at her desk, looking over some report I’d given her last minute, her eyes tired, her blouse unbuttoned just enough to give me a glimpse of that perfect cleavage. I couldn’t hold back anymore.

I walked over, standing behind her, close enough to feel the heat of her body. She didn’t move, but I could tell by the way she shifted in her chair that she was nervous. Or maybe curious.

“Lily,” I said softly, my voice thick with the desire I’d been holding back for weeks. “You’re doing such a great job here. I couldn’t help but notice how hard you’ve been working.”

She smiled, looking up at me with those innocent eyes. “Thanks, Mr. Blake. I’m just trying to learn as much as I can.”

I placed my hand on her shoulder, feeling her tense beneath my touch. “You’ve definitely impressed me,” I murmured, my hand slowly sliding down her arm, feeling the smoothness of her skin. “In more ways than one.”

She looked up at me, her cheeks flushing, but she didn’t pull away. “What do you mean?”

I leaned down, my lips close to her ear, my hand now brushing against her thigh. “I think you know what I mean, Lily.”

Her breath hitched, and for a moment, I thought she might push me away. But she didn’t. Instead, she turned her head slightly, her lips just inches from mine. That was all the invitation I needed.

I kissed her, soft at first, testing the waters. She didn’t resist, and soon, her lips parted, letting me in. My hand slid further up her thigh, pushing her skirt higher as I deepened the kiss, my cock already hard in my trousers.

“I shouldn’t be doing this,” she whispered, her voice shaky, but her body said otherwise. Her legs parted just enough for me to slip my hand between them, feeling the heat radiating from her.

“I know,” I whispered back, my fingers sliding under the lace of her panties, finding her already wet. “But we both want this, don’t we?”

She didn’t answer, but the way her hips arched against my hand was all the confirmation I needed.

I pulled her up from the chair, pressing her back against the desk, my hands moving to unbutton her blouse. Her tits were even better than I’d imagined, full and firm, and I wasted no time pulling her bra down, sucking one of her nipples into my mouth. She moaned, her fingers tangling in my hair as I tugged her skirt up around her hips, my hand sliding between her legs again.

I could feel how wet she was, her body trembling beneath my touch. I unzipped my trousers, my cock hard and aching as I pushed her panties to the side and slid into her, filling her completely. She gasped, her nails digging into my back as I started to move, slow at first, savouring the feeling of her tight, young body around me.

“Fuck, Lily,” I groaned, thrusting deeper, harder. “You feel so good.”

She moaned, her legs wrapping around my waist as I fucked her against the desk, her body arching with each thrust. I couldn’t get enough of her, the way she moaned my name, the way her body responded to every touch. It was everything I’d imagined and more.

After that first night, it became a regular thing. Every chance we got, we’d find some excuse to stay late, lock the door to my office, and fuck. It was wild, intense, and I couldn’t stop. She was like a drug, and I was addicted.

For four months, we carried on like this. It wasn’t just about the sex, though that was incredible. I started to develop feelings for her, real ones. I’d find myself thinking about her all the time, daydreaming about what it would be like to have her outside of work, to be with her properly. It was dangerous, and I knew it, but I couldn’t stop.

And then, of course, there was my wife. I still went home to her every night, still played the part of the loving husband. But it felt hollow, like I was just going through the motions. Lily was all I could think about, all I wanted.

But how could I ever leave my wife? How could I explain that I was in love with a girl half my age, the daughter of an old friend? It was fucked up, but I couldn’t help it.

I know this can’t last forever. Sooner or later, something’s going to give. But for now, I’ll keep going. Keep seeing Lily, keep fucking her whenever we can, and hope that no one finds out.