“Good evening and welcome to the Black Mesa Transit System.  This automated train is provided for the security and convenience of the employees of the Black Mesa Research Facility personnel.  The time is 08:02 PM.”

Naomi watched the pneumatic door closed behind Gordon Freeman from her spot near the front of the tram.  The man gave her a slight nod as he passed to take a seat on the opposite side.  After giving passengers ample time to get seated, the train resumed down its track.

“This train is inbound from Sector C Test Labs and Control Facilities to Level 3 Dormitories.  A reminder that the Black Mesa Personnel Dormitories are intended for faculty and staff of the Black Mesa Research Facility only.  All guests must be checked in at the Level 1 Facility Entrance security checkpoint and must be accompanied by their hosts at all times.”

Naomi tuned out the announcement as it droned on.  In her peripheral vision, she noticed Gordon loosen his tie with a sigh.  She didn’t blame him.  It had gotten late by this point.  Most people had clocked out at least three hours before.  His lab coat was shrugged off next and laid over his lap.  The Sector C platform disappeared as the tram took a corner.  The moment it and the security guard stationed there was out of sight, Naomi pushed herself off her seat.  She sauntered over and sat in the empty spot to his right.  No need to spend the next 15 minutes bored.

“Long day, Freeman?” she asked.  While Gordon hummed affirmatively, her hand slipped beneath the coat.  “Tell me about it.  I’ve been up since four.”  The squeeze she gave his thigh was meant to be comforting, but he stiffened at the touch.  Her fingers brushed along the inner seam of his slacks.  “But at least we can relax now, hm?”

She looked over, catching him in the middle of an exhale with his eyes closed before casting her a sidelong glance.  Those green eyes were darkened with something more than exhaustion.  A flicker burned in her chest.  Emboldened, her hand ventured upwards.  The heat of his body radiated through his pants.  Only when her fingers graced the rigidity of his arousal did she pause.  A grin split her face and she leaned closer to him.

“Eager, aren't we?” Naomi teased, though she knew the answer.  After all, this idea was forged from the brilliant mind of Dr. Freeman himself.  All it took was a few late-night beers to loosen the quiet man's lips enough for him to blabber to her about his desires and escapades, or lack thereof.  He shared one particular naughty fantasy involving the tram, and of course, she knew she just had to find a chance to indulge him.

Her fingertips traced upwards along the fly.  A deft thumb flicked the button out of its hole, then dragged the zipper down its track.  Such a soft sound, yet it seemed to resonate through the tunnel.  Gordon shifted in his seat— not out of embarrassment, but to allow more room for his colleague to work.

A graceful hand slipped past the slit in his boxers to coax him out. Fingers curled around the velvety shaft.  His pulse thrummed with both apprehension and anticipation through the thick veins beneath her palm.  She wanted nothing more than to sink to her knees in this very train car and taste him, but that was more of a risk than either party was willing to take yet.  This evening, they'd have to settle for covert stimulation.

Naomi's thumb smeared the beading arousal from the tip, down his length, and began pumping him.  A soft grunt and muttered swear escaped Gordon.  His knuckles whitened around the coat that preserved his modesty.  She looked up from his hands to his face, catching the perspiration dotting his temple and the way he stared straight ahead.

“Something wrong, Gordon?” asked Naomi.  A quick shake of his head followed.  It was admirable how composed he had managed to remain even as he was sweating bullets right through his pristinely starched button-up, but she couldn't allow him stay that way much longer.  She tightened her grip, applying a touch more pressure at the base with the next flick of her wrist.  His hips jerked upwards, driving himself deeper into her clenched fist.

She diverted her eyes away from him, taking in the scenery while continuing her languid strokes.  She watched the flickering lights and rocky walls of Black Mesa pass, but he remained in her peripheral vision.  Judging by their surroundings, they were a still few minutes out from reaching the dorms... just enough time for her to edge him a little longer.

Naomi didn't return her attention to Gordon when she loosened her grip, but she could see the slight slump of his shoulders.  They tensed the instant she lightly raked her nails along the underside.  The breath he sucked in brought a smile to her face, and her fingers curled around him again.  It twitched in her grasp now, displaying all the tell-tale signs of his imminent undoing.  He was closer than ever.  It wouldn't take much to set him off, and this last stretch of track before reaching the dormitories was concealed by canyon on either side.  Letting him spill in her hands would make quite a mess, and she couldn't have that, could she?

With her free hand, Naomi tore the coat away from him.  Gordon gasped, but before he could react, she had leaned down and took him between her warm, welcoming lips.  No time was wasted as she went to work, swallowing the head and hollowing her cheeks around the rest.  Though her head bobbed at a frantic pace that needed no guidance, Gordon couldn't keep his hands to himself.  He fisted her ponytail, keeping the dark strands in his grip to guide her up and down along his pulsing length.  At the first spasm, he held her head firmly in place, forcing the torrent of his climax to flood her esophagus.  Her greedy throat worked overtime, swallowing every salty, succulent drop, even as his grip grew lax and fell away.

Naomi pushed herself off his thigh, wiping her chin with the back of her wrist.  Before sitting up, she tucked his spent member back into his boxers and zipped his fly for him.  She gave his groin a small pat once she was upright in her seat, then ruffled his hair that had managed to escape its comically small ponytail.

“Now arriving at Level 3 Dormitories...”

At the sound of the PA, Gordon pulled his slumped head off the rest and Naomi looked to the front of the car.  Both sets of eyes spotted the platform beginning to come into view in the distance.

“Right on time,” she said, giving his thigh one final squeeze as she stood and returned to her seat near the front.  He shook his head and fixed his glasses.  The tram would soon be stopping, but he knew this wasn't nowhere near the end of the ride...