I've come this far...

Well, it won't hurt will it? My wife will never find out, and even if she did, she liked the thought of it, so why not
"Uh, well, why don't you sit down here while I tell you about it," I began, pointing to my chair as I hopped up.
"Sure," Gina smiled as she came over and slipped into my chair.
"Did you have a nice day?" I asked, not quite sure where to begin.
"Yea, though my friend was telling me about some problems she's having and it was a little stressful."
"Oh, well in that case, let me.." I laid my hand on her shoulders and began gently massaging them, much as I'd suggested to my wife I'd do.
"Mmm, that's nice Alex."
"No problem, just relax for a few minutes and enjoy.'
I leaned over her, finding the orange and cinnamon scent of her intoxicating.
As I continued my massage she relaxed further, closing her eyes and leaning her head back against the top of my chair. Standing above her as I was, I could now see right down her top, between her deliciously tempting breasts.
I continued in silence running my hands over her shoulders, and began moving further forward each time I circled around.
As I began getting closer and closer to her breasts Gina merely encouraged me further, sighing deeply as she said "mmmm, I could let you do that forever. It's so nice."

I continued probing further and within a minute I was actively stroking her breasts, rubbing my fingers across her nipples as I did so. Gina suddenly opened her eyes, then staring at me placed her hands over mine.
Shit, she doesn't want this, I'm in trouble, I began to think before she pushed my hands up and to the sides, releasing the straps of her top and letting them slide down her shoulders.

Huh...Guess she does. I leaned down further towards her and she closed her eyes as our lips made contact for the first time. I could taste the strawberry flavour of the lip gloss she was wearing, and savoured the sensation for a moment before her tongue began licking my lips. I opened my mouth a little to let her tongue explore, and met her with mine. As we ran our tongues over each other I continued stroking her breasts, pinching her nipples gently as I did so.

Gina turned around then stood up and pushed me back towards my desk, making me sit, and then lie backward. Without any further encouragement she leant forward and undid my zip, pulled out my cock and took me immediately in her mouth. She was as talented as I'd imagined, simultaneously using her hands on my shaft and balls, while she swirled her tongue around my head. After a few moments she pulled off then continued to stroke my shaft as she took each of my balls into her mouth in turn. "Mmmm, I do love a nice clean shaved cock Alex," she said in between sucking each of my balls. I placed my hands on her head to encourage her just as she again took my shaft in my mouth, and I began gently urging her to take me deeper as she bobbed up and down on me.

After a few minutes of pure pleasure she suddenly stopped, leaving me feeling empty, but when I lifted up to see what she was doing she was pulling her panties to the side and sliding her fingers in and out of her pussy.
"Get up," she demanded, and as I did she grasped my cock, then laid down where I'd been, tugging my cock towards her as she did so. "Stick it in me already," she demanded as her legs waved in the air, "I'm so horny right now."
Without a further word, I immediately did as she asked, lining my cock up with her slit, and grabbing her feet in my hands I thrust into her as far as I could go. She was wet and tight, but easily able to take my whole length, and I began fucking her in earnest, powering my cock into her as she fingered her clit. Within moments I was close to cumming, her hot pussy contracting around my cock was getting me off quickly. She began moaning as her own orgasm approached and inserted two of her fingers into her pussy alongside my shaft, stretching herself further.
She arched her back as she came suddenly, her pussy spasming on my cock, forcing me over the edge, and to flood her with my cum.

She lay silently for a moment, breathing deeply. "Oh wow, I've wanted that since I first saw you."
"Really?" I asked, somewhat surprised this hot young thing wanted me.
"Yea, though I never thought it would happen until I saw you watching me and Dan, I knew then you'd try, and that I'd let you."
"Oh? Did you want to fuck Dan or..."
"No, I only did him for my job, and then to keep it of course. But you, you're so much hotter than that old fart."
Wow, I'd never thought about myself like that before.
"Anyway, I should get home. Thanks for this Alex," Gina smiled brightly. "We'll do this again, right?"
"You bet," I said somewhat automatically, though to be honest it was totally true.
I packed up my bags as Gina put her panties back on and fixed herself up then escorted her to her car, and drove home.
This'd sure make for interesting dinner conversation... If I decide to bring it up.