It was a hot summer night and five scientists had decided to spend some time together in the privacy of their lab.They were all dressed in tight-fitting spandex workout gear, showing off their toned muscles and athletic physiques.One of them, Dr.Alexia Grey, walked into the room and caught the others staring at her assets.She grinned and sauntered over to the first of them, an older man named Dr.Michael Greenwood.Alexia was wearing a black spandex suit with white piping around the edges, accentuating her hourglass figure and shapely ass.Michael had been waiting patiently for Alexia to arrive, his cock already erect and straining against his spandex briefs.He took her in with a hungry gaze, appreciating the curves that protruded from her chestnut brown hair and piercing green eyes.Alexia's lips curved seductively as she approached Michael, I can see you've been waiting for me, she said.Michael nodded, unable to tear his gaze away from her pouty tits.I was thinking we could start our evening off with a little exercise.Alexia raised her eyebrows in curiosity, What kind of exercise? Michael smiled lasciviously, We could use the crossbar machine, he said.It'll give you the clitoral stimulation you need.Alexia's heart quickened as she imagined herself riding him up and down the metal bar, feeling every inch of his hard length sliding inside her wet slit.She nodded eagerly, taking him up on the offer.Alexia leaned over to a nearby storage cabinet and pulled out two pieces of equipment - a vibrator and a butt plug.She held them up to Michael, Do you want to add a bit more to our exercise routine? Fuck yes, Michael growled.He slid into the crossbar machine with ease, allowing Alexia to climb onto him.She held onto his broad shoulders tightly, her arms locked around him as she lowered herself down onto him.Alexia's screams echoed through the empty lab as she felt herself being penetrated both inside and out.She gripped her own breasts, squeezing them to the rhythm of Michael's thrusting as she rode him harder and harder.Once Alexia's body was wracked with cum, Michael grabbed onto her hips and pulled out of her.She looked down to see him still pulsing against the tip of her clit as he released his load on the floor beneath him.She watched as his cum streaked across the floor, pooling around his feet.As they cleaned up, Alexia couldn't help but feel attracted to Michael.He was handsome, intelligent, and clearly sexual.As she left the lab that night, she knew that she wouldn't forget this experience anytime soon.