I went to do some laundry one day and Shannon’s clothes were in the dryer when I went to change over my load of clothes. I pulled them out and of course, it was a bunch of bras and panties. I felt awkward touching her underwear. I was holding up a little thong, eyeing it carefully. I suddenly heard a voice, “You like those sir?”

“Um…uh…Shannon…I was doing laundry and…”

“I don’t care if you touch my underwear. Look at it…tell me which ones you like best…” She was giving me a seductive grin, as she walked slowly toward me. “Do you like thongs or like these regular panties?” She held up some ordinary cotton bikini style panties. I just looked at her and the underwear. My dick was standing straight up in my sweatpants. “I have some of these boy shorts too.” She picked them up and showed me. She looked down at my obvious erection and her eyes lit up. “You like those…tell me which ones to wear today…hmmm?” She gestured at the pile of underwear on top of the dryer.

I was standing there, breathing heavy and looking at the expectant look on her pretty face. All I could do was point at a pair of panties.

“Oh, you like regular panties. I think these are cute, too, sir. They are kind of cheeky in the back. Good choice.” She grabbed her pile of clean underwear and turned to leave, but turned back to say, “I’ll be wearing those today. You just do whatever you want with that information.”

She left me standing there with an erection. I reached into my sweatpants and grabbed my hard cock. I stroked it in long slow strokes. I braced myself against the washer with one hand while slowly jerking off with the other. My phone rand with a FaceTime call from my wife, interrupting my jerkoff session.

“Hey honey.”

“Morning, your face is all flush. Are you okay?”

“Yeah, I’m fine. I just lost my phone and had to run around looking for it when you called.”

I got a text notification while I was on the call. Shannon sent me a picture of herself in the panties. She had faced her ass to a full length mirror in her room to get a picture of her butt in these panties.

I involuntarily said, “Wow…” under my breath.

Jen looked confused, “Wow?”

“Oh, Shannon jist sent me some data from some tests we ran yesterday.”

“Oh, so it’s going well?”

I walked out of the laundry room and into the living room and kitchen area. My boner was still obvious under my sweatpants. “Yeah, so far we are just doing performance checks on all of the instruments in the lab. It’s going really well though.”

“That’s great news.”

“Yeah…”, my eyes drifted to Shannon who had just walked in the room, with a sexy grin on her face. Her eyes drifted to my obvious erection and her smile broadened.

Shannon walked past and said, “Mornin Jen,” and waved at the phone. Jen said, “Mornin Shannon, are you taking good care of my husband?”

“I’m trying too, but he’s kind of stubborn. Won’t let me do what I want to do.” She gave me a sly grin.

Jen laughed, “That sounds like Sam.”

Shannon was wearing some low waisted, olive drab sort of pants and her ass looked terrific. I kept picturing those panties under there. She also had on a tiny tshirt that left her midriff and lower back bare. I wanted to run my tongue down her abs and then down to her pelvic area.

I walked away from Shannon and Jen whispered, “Her pants are so low, I can practically see her pussy.”

“I guess that’s how women her age dress. You could dress like that.”

“Honey, I couldn’t.”

“You’ve got a nice flat stomach babe.”

“Well Shannon’s is ridiculous. Has she ever had a carb? You could eat off that thing.”

I laughed too long at that, “Oh Jen…”

Finally Jen said, “Okay, I need to do some work. Bye.”

Shannon looked at me with a grin, “What did you think of my text, sir? I wore the ones you liked.”

I just pulled down my sweatpants and underwear enough to expose my hard cock to her. “That’s what I thought of your picture.”

She dropped the knife she was using to put some peanut butter on some toast and bit her lower lip, as she stared at it.

I pulled my pants back up and walked over to Shannon, “My wife thinks your pants are a little too low waisted.”

She blushed, “What do you think sir?”

“I think they could be lower.”

She pushed them down as far as they would go. I could see a little gap between the top of her mons and her pelvic bones.

I looked down at her waistline, “She said it looked like I could eat off your abs.”

“You wanna try?” She grabbed some honey that she had out to put in her yogurt. She squirted a little just below her belly button.

I moved down to my knees and licked the honey, sucking it off her. I kissed all around her bare abs. She was looking down at me smiling. I unbuttoned her pants, exposing the front of her underwear and she said, “Oh…yes…sir…”

I kissed all around her pelvis and licked right outside the little triangle of fabric in the front. I put my tongue down in the front of her panties licking just barely above her pussy. “Mmmm…sir…”

I got a work call and had to stop and answer it. Shannon whimpered, “fuck,” as I stood up and took the call. She buttoned her pants with a disappointed look on her face.

It was my buddy, Jim. “Hey man, how’s it going out there?”

“It’s going great.”

“How is Shannon doing?”

Shannon yelled from the background, “I’m doing great, thanks for asking.” She giggled. I pointed the camera at her and she waved to Jim. “Sam is teaching me the ropes, but he just makes me do stuff on my own instead of doing it for me.” She was looking at me with a devious look.

“Well, that’s the best way to learn.”

“I know, it’s just frustrating sometimes.” She gave me that funny grin again.

I walked toward my bedroom to get dressed for work. Jim said, “Sara and I had dinner with Jen the other night.” He chuckled a little, “She’s not too pleased that you’re out here with Shannon.”

I grinned a little, “Yeah, I could tell.”

Jim laughed, “I can’t believe you’re out there with her. I can’t imagine being around her 24 hours a day alone.”

I laughed awkwardly, “She’s fun and yeah, she’s nice to look at, but we’re just doing our jobs.” I was thinking how he didn’t even know the half of it.

“Nice to look at…that’s one way to put it.”

He was right, nice to look at was an understatement and her flirting was not helping either.

“Sam, she’s smoking hot and we both know it. The way she dresses too…”

“Look, Jim, this is inappropriate. She is our colleague and she happens to be attractive.”

He chuckled, “Alright friend, no need to report me to HR. 6 months though. Man. I hope you brought a lot of lube and tissues.”

I laughed at that, “Okay, why did you actually call other than just being horny for Shannon?”

“We have some gps coordinates from the client, where they want you and Shannon to go collect some samples this week.”

“Nice. I’ve been hoping to get outside of this station for a bit.”

“We’ll send you the gps coordinates in the chat.”

“Okay.”

“See you later buddy.”

“See you and thanks for looking out for Jen.”

Shannon and I worked in the lab together all day. She wore a lab coat and glasses, looking like a sexy nerd. We played loud music in the lab, as we worked, performing maintenance and calibration work on the various instruments.

I was carefully aligning some optics on an instrument, when Shannon passed behind me. She gently touched my ass, as I bent over to reach inside the open instrument, “Behind you.” I looked over my shoulder and she had a sexy grin. I shook my ass at her and she slapped it playfully. Fuck…just keep it professional. I chastised myself in my own mind, oh yeah, Sam, you’ve been so professional with her. I tried to get myself back to work.

“Shannon, I’m going to start thawing one of the samples from last year. We’re going to do some whole genome sequencing and try so if the meta genomic data matches what we got last year as a performance check on the sequencers.”

I pulled out the sample to thaw in a biosafety cabinet. Shannon giggled, “This is a shitty job,” as she looked at the sample thawing in a 50ml conical tube.

I rolled my eyes at her, “Every single scientist on this program has made that joke.”

“Happy to be part of the club.”

“Do you want to the honors and perform the nucleic acid purification?”

“Yes…I’m happy to get my hands dirty.” She grinned at me.

“Enough with the crappy puns, Shannon.”

“I’m sure I’ll be pooped after this, sir.” She laughed hysterically at her own pun.

I shook my head, “Oh Shannon, that was bad.”

“Could you get me a stool…”, she cracked herself up, and I rolled over a lab stool for her to sit on.

Later, she was bent over an instrument. She had taken off her lab coat because she was not working with anything hazardous. I saw her ass there in her low waisted pants. I was out of control and I just grabbed it like she had done to me, only more of a grope, “Behind you, Shannon.”

She turned and smiled at me, then wiggled her butt, like I had done. I smacked it and she giggled. I ran my hand down her ass and a little between her legs and she purred a little. I felt my face turn red, and pulled my hand away like I’d touched something radioactive. She stood up straight with a grin on her face. She took off the nitrile gloves she was wearing and set them on the counter.

“What’s wrong, Sam?”

“I…uh…shouldn’t have done that.”

“I didn’t mind at all.”

I just stared at her a little.

Shannon started unzipping the fly on her pants and my eyes went wide. “See, I wore the ones you picked,” showing me the front of her panties.

Shannon pulled down the front, showing me. Her hand lightly moved around the skin of her lower stomach, just above her panties. Then, she had a naughty grin, as she slid her hand down into her underwear touching herself. I was shocked, as she looked at me while masturbating. She said in a halting voice, “I liked when you touched me between the legs.”

I felt my hands move on their own to unzip my pants and I pulled out my hard cock. She stared at it with a grin, and she made some sharp exhales from her own hand movements. I started stroking my cock and she whimpered, “yeah…oh yeah…mmmm…fuck…”. She leaned against the counter to support herself as she stood, masturbating.

I wanted to fuck her, but somehow my brain was justifying mutual masturbation as not really cheating. Ridiculous. She pulled down the front of her panties further and I could see just the top of her labia a little, as her hand rubbed around on herself.

I couldn’t help it and moved forward, so that I could rub my cock on the skin of her mons. She kissed my lips because I was close enough, but I turned my face away and then we both looked down at my cock rubbing on her skin. I moved it lower and rubbed at the top of her slit, just feeling some of her wetness on it. Her hand moved with fingers spread in a V, her fingers touching either side of my dick a little, as she reached at an angle to touch herself and my cock. I moved even lower and she gasped. I didn’t put it in her, but just had it in her pulled down panties and perpendicular between her legs, rubbing her wet pussy. I was sort of fucking her thigh gap, while she rubbed her clit and sometimes touched my dick a little. Having her fingers touch my dick, was like little electric flashes and somehow felt more wrong than everything else we were doing.

I needed to cum, so I pulled my dick up to stroke it and I came a huge load on her hand and dribbling down onto her pussy, as she masturbated. Her brow furrowed and she moaned, “oh my god….” in a strained voice, as my hot cum spurted onto her hand and down towards her pussy. Her hand slowed down and she rubbed my cum around down there a little. There was a wet stain visible when she pulled up her underwear.

She chuckled, as she wiped the cum off her fingers with a lab kimwipe. “You’ve made kind of a mess here.”

“Sorry.”

“No need to apologize…uh…that was fun. But, I think I need to go clean up a bit.” She snuck a quick kiss on my lips, as she walked by. I didn’t kiss her back, but did not stop her from quickly putting my lower lip between her lips and then she looked right in my eyes and walked away. I watched her ass and looked at her exposed lower back, as she walked across the lab. I looked down at my cock that was still out and could not believe it had touched her. It had been between her legs. I tucked it back in my underwear and zipped up.

I got Teams call on my laptop right there in the lab. It was this young, male technician back at headquarters. He was going to walk me through updating the firmware on some instrument.

He had a cheeky grin, as he said, “How’s it going with Shannon there?”

My face was still flush from masturbating with her and my dick still a little swollen in my pants, as I said, “It’s going great. We’re getting a lot done.”

He quietly said, “Yeah, but between you and me, how is it being out there alone with her?” He had a grin. “All the guys back here are dying with jealousy. I mean, fuck she’s so hot.”

“You’re being very inappropriate right now…”

He interrupted, “I’m sorry, I just…”

I interrupted him, “No, you listen up. Shannon is a chemist and she is senior to you. If I ever hear you talk about her or any of our other female colleagues like that again, I’m going to have to mention it to HR.”

He turned red and looked down, “Yessir. Sorry, I won’t do it again.”

“Okay, now walk me through this update.”

“Okay. There is a small hole on the back of the instrument, near the power supply. You have to take a paper clip or something and push it in there. You have to depress this little switch, while holding the power button on the front of the instrument.”

Just then, Shannon came back in the lab and walked up behind me. I could see her in my camera and she was wearing her work out attire. It was a tiny sports bra and some very short shorts. I saw the male technician’s Adam’s Apple slowly move up and down as he gulped looking at her. She put her hand on my shoulder and said, “Hi Keith,” to the technician.

He awkwardly fumbled out, “You remembered me?”

She laughed, “Of course.”

He smiled and blushed.

She turned to me, “Do you need me, or can I go work out now, sir?”

I looked up and down her body, “Uh…I can handle this. Shouldn’t take long and then I’ll come work out too.”

Shannon smiled and said, “Good. I like having a workout buddy.” She moved her eyes up and down my body. “See you Keith.” She walked away. I saw Keith staring at her perfect ass in those shorts and we were both quiet for a bit.

I cleared my throat awkwardly, “Okay, so how long is this firmware update?”

Keith gave me a wry look, “In a hurry to go somewhere, sir?”

“I…uh…we usually work out before dinner.”

“Well, enjoy your ‘workout’, sir.” He made air quotes around workout. “We’ll be done in 5 minutes.”

I defensively said, “You know, if Jim was here, I’d be working out with him.” I inserted a paper clip in the hole and depressed the button on the front.

“I bet your workouts with Jim are a little different…sir.” He grinned a little at his use of the word sir.

I didn’t respond, but he said, “Okay, you can walk away from it now. I’m gonna update the firmware remotely.”

“Thanks Keith.”

“Enjoy that workout, sir.” He had a smug grin.

I changed into my workout clothes and headed to the gym. The field station had a very nice gym, designed to entertain the staff on long deployments. It had a nice wall of glass windows, looking out onto the frozen landscape.

When I walked in, Shannon had AirPods in her ears and was singing to some pop song, dancing around a little, as she walked to grab some kettlebells. She smiled at me a little and continued, then stood up on two flat benches, one foot on each, and did deep squats, holding the kettlebell. Hoky crap, that ass.

I got on a treadmill to warm up, and then did some sets of various weights. She was doing hip thrusts with a bar bell and looking at me some. We both stopped to get some water and just looked at each other and smiled as we stood at the water cooler.

“Can you spot me, Shannon?”

She held up one of her toned arms, flexing, “Yessir, look how strong I am.”

“I’ve definitely noticed how fit you are…” I let my eyes move up and down her body.

I moved to lay down on a bench to do some skullcrushers with bar. She smiled down at me, “I was beginning to think you didn’t notice me at all, sir.”

I started doing the skullcrushers, “Just give me a little assist so I can get to ten.”

She nodded and when I got to 8, she had to give me just a slight bit of assistance to get to ten. I sat upright and put down the bar. She walked around the front of me and lifted up my tshirt sleeve to look at and feel my triceps. “Hmmmm…sir has nice arms.”

I put my hands on her hips, as she stood in front of me. My face was around her crotch level and I could see her camel toe. I sighed, “Shannon…”

She cut me off, by sitting in my lap, straddling me, “Yes sir?”

I made some sharp breathes, “You’re beautiful, but…”

She kissed my neck and nibbled my ear. She whispered, “Mmmm…your sweat tastes good sir. You smell like sex.” She pushed me down on my back and kissed my lips. I kissed her back this time and she grinned. She rocked her pelvis a little to move her crotch on my growing erection.

“Shannon…fuck…” My hands wandered into the back of her workout shorts a little to feel her bare ass cheeks. She kissed me again and then sat upright, grinding herself on my rock hard dick. She got a mischeivous look and pulled down my shorts a little, to expose my hard cock. I twitched it up and down and whimpered a little.

She looked down at me with a grin and bit her lips, as she rubbed her camel toe on my bare cock. I could feel her pussy lips on my dick through her shorts, as moved back and forth. Her hand slid into her shorts and she touched herself while moving on me. Her other hand moved up to touch her tits and she lifted up her bra, exposing her small tits to me. She squeezed one, while masturbating and grinding my bare hard dick.

“Mmmm…sir…I’m so wet for you…”

“Fuck…Shannon…”

I could see her hand moving in her Lycra shorts. She arched her head upward involuntarily. I had some precum forming at the tip of my dick. Her tits were so small and firm, they hardly moved, as she thrusted back and forth on me. I grabbed a handful of one of her ass cheeks. “You could slip it in me sir…it would slide right in…”

“No…Shannon…”

“I want your cock sir.”

I started spurting cum out my dick and onto my abs. Her face scrunched up and she whimpered, as she orgasmed, “oh my god…sir…”

Her hand slowed down in her shorts and her breathing became more normal. She had a satisfied grin on her face and then pulled her hand out of her shorts. She dragged her slick fingers over my upper lip right under my nose and giggled. I caught a whiff of her delicious scent. Then she stood up and grabbed a clean towel from the stack near the door and wiped the cum off my stomach and my dick, as I laid there in shock. She grabbed my dick through the towel a little, “Don't worry, I didn’t actually touch it sir,” and she winked at me.

“I’m going to go shower before dinner,” and I watched her leave the gym. I pulled up my shorts and sat up, seeing my red face in the mirror.

I said, “Holy crap,” out loud and then grinned to myself in the mirrored gym wall. I picked up the bar and did another few sets before cleaning up.