I'm just shy of turning twenty-one. I'm your average guy: tall, short brown hair and blue eyes. I'm not athletic at all, but I'm not overweight. I'm just average in most places. I've recently started a new job as a receptionist, so I work nine to five Monday to Friday, except on Thursdays where we're open until seven.

Normally it's pretty dead on a Thursday evening so everyone leaves at five and I hang around by myself until closing, but this week was different. It got to five o'clock and everyone was going home, but I never saw my manager leave. She's normally gone before everyone else, but she must have still been upstairs. Once everyone had left and I made sure there were no clients in the building, I went upstairs to see if Jenny was still around. 

Jenny was my manager. She was quite young, early to mid-thirties, long brown hair and dark eyes. She was tall, had a great figure, great boobs and a killer smile. I knew she was married, but I couldn't help but fantasize about her and the things I wanted to do with her. 

I was nervous as I walked towards her door, as all the thoughts I was having were turning me on. I tried to compose myself as I knocked on her door. 

"Hello?" came from the other side. 

"Hi, Jenny, it's just me. I was just checking if you were still here. Everyone else has left."

"Thanks, Ryan, but I'll probably be here all evening. Let me know when you're leaving so I don't get stuck here overnight though."

"Yeah, of course. Shout downstairs if you need help with anything."

I walked back towards the stairs to head down to the reception area when I heard Jenny shout.

"Wait, Ryan, whilst you're here, could you come and look at something?"

I stopped in my tracks and went back towards the office. I let myself in and saw Jenny getting frustrated at the computer. She was wearing a low-cut shirt showing off her cleavage, and tight-fit trousers that showed off her perfect ass and legs. My mind started to wander again and I could feel my dick get hard in my pants. 

"Could you come and have a look at this?"

Jenny's voice brought me back to reality. 

"Yeah, sure, what's the problem?"

"None of these figures are adding up and I can't work out why. They need to be sorted by tomorrow afternoon otherwise I'll get in shit with my boss."

"Let me have a look. Do you mind if I sit?"

Jenny stood up and as I squeezed past her to take her seat, her ass brushed against my crotch, but almost as if she had done it on purpose. I took a seat, my heart racing, and my dick still hard in my pants. I was trying to concentrate on the computer screen and figure out the problem, but then Jenny came leaning over me to look at what I was doing and I couldn't help myself. Her boobs were so close to my face and I'm sure she'd purposely rubbed against me, so I took a chance. 

I grabbed her face and kissed her hard on the lips. I was shaking with nerves and adrenaline as I kept kissing her, not believing what I was doing. Then I stopped, remembering she was married and she was my boss. 

"Shit, I'm so sorry. I didn't--" I stood up and tried to stutter out an apology but Jenny just put her finger to my lips to quiet me and kissed me again. It was softer this time, but no less intense. Her lips parted and I felt her tongue enter my mouth. I pulled her closer to me, not wanting this to stop.

As Jenny was lightly moaning and pushing into me, I grew more confident, knowing what I wanted. I grabbed her arms and pushed her against the wall, pinning her there, kissing her lips and neck, sucking slightly. She was moaning more now and as I let go of her arms, her hand slid down my body and grabbed my hard dick. 

"Is this all for me?" she asked slyly, smiling. I looked her in the eye, nodding. 

"I've wanted you for a long time, Jenny. I know it's not right, but I haven't been able to stop thinking about you since the day I met you."

"My husband's out of town and he's sure as hell got nothing on you. I've always wanted to fuck a younger man."

That really got me going. I kissed Jenny hard again, my hands now busy undoing her shirt buttons, then reaching back for the clasp of her bra. I pulled both off, revealing her amazing chest. I kissed her neck and made my down to her boobs. I kissed each of them and then started sucking on her nipples. Jenny was moaning loud and grabbing at my dick through my trousers. 

"I want you, Ryan! I want you inside of me!"

I needed no other instructions. I hastily cleared paperwork off the desk and lay Jenny down on it. I unzipped her trousers and pulled these off, revealing a hot red thong that already had a wet patch. I kissed her thighs and nibbled at her pussy through her panties, getting a good smell of her wetness. 

I couldn't help but let out a moan. I ripped off her thong and stuck my tongue as deep in her pussy as I could. I licked and I sucked, alternating speeds, doing everything I could to make her moan and squirm. Just as her body was starting to shake, I stopped. I stood up, and as Jenny looked at me, I undid my trousers, pulled them and my boxers down to reveal my hard dick. 

I was so hard and had precum forming on the head. Still looking Jenny in the eye, I started rubbing myself, moving my hand up and down my shaft, licking my lips. 

"You're driving me crazy! I want to taste you!"

I sat on the edge of the desk where she was just lying and Jenny knelt down in front of me. She grabbed my dick and immediately started jacking me off. Before I knew it, her lips were wrapped around my dick and her tongue was making me feel amazing. Her hands started fondling my balls as her head was bobbing up and down my shaft. I groaned as I could feel the cum building up. My legs started to shake, and just before I shot my load, Jenny stopped and looked me in the eye. 

"I want you to cum in me, Ryan. I want you to fuck me hard."

I grinned. I pulled Jenny up, kissed her and then leant her over the desk so her perfect little ass was facing me. I spanked her and spread her legs. I inched closer to her, pressing my head into her soaking pussy, then pushing my mass all the way in. I stood for a moment, letting her get comfortable, and then started to thrust. 

I started slowly, pulling my dick almost all the way out and then sliding back in until my balls hit her ass, but then I found my rhythm and started to get faster. I pounded her, thrusting as much of me as I could, letting the moans take me over. 

Then, all at once, Jenny's legs shook as she screamed and I blasted my load into her, my legs going limp. We stood for a moment, my dick still inside her, panting and catching our breath. 

Eventually, we found the energy to move and tidy ourselves up. I looked at Jenny back in her clothes and couldn't believe my luck. She looked at me and smiled. 

"I guess I'll have to start staying late more often.". 

Author's note: This is my first ever story and the names in this story have been changed for privacy reasons.