Lab time

Hi so in this story i am jumping ahead a few years in my life to after uni working in a lab curing cancer.
I watched the petri dish as the small colonies of cells started to die away at a surprising rate as the virus caused them to undergo apoptosis (cell version of suicide) i smiled as i watched my handiwork. It had taken me and Peter the other scientist i worked with only 5 weeks to perfect the strain of virus that would exclusively attack a  cancer cells. we were on the verge of starting testing on full organisms now before we passed on to clinical testing and in a few years it would be ready and we would be rich there was a Nobel prize in this for sure. we may not have had the original idea but we were the only one who had managed to create a working virus. i grinned at the thought of how close we were. i left the virus to finish of the remaining cells in the dish and when to lunch. as i took off my face mask i saw Peter working at the computer writing up the results of the last test. "Hey Peter you coming to lunch?"
"yeah in a minute" he sighed we both hated the amount of writing up we had to for all these tests but it had to be done. i when to the canteen and grabbed a plate of spaghetti, i was starving for some reason watching a virus cause cell to digest themselves always made me hungry.  i was half way through when Peter sat down opposite me "hey"
"hey there have fun writing that report?"
"oh yeah its a ball" he replied his voice dripping with sarcasm
i laughed and continued eating "you know i have had Copper on my back tring to get us to do a press release" i mentioned
"again? god damn him we aren't even sure it works on mice yet let alone humans, i dont want to be the guy who tells cancer patients hey we can cure you all now and then say 5 months later errm no actually we cant."
"thats what i told him he didnt seem happy"
"well let him be unhappy unless he want to try and explain to the press what we are doing he cant do anything about it. and what chance does he have he has a physics degree he wouldn't even know the difference between mitosis and meiosis"
when we had finished we went back to the lab to continue our work we stayed late that night working into the small hours of the morning chatting while we worked.
I was putting a sample through the PCR machine peter came and stood next to me i smiled up at hi boyish face and smiled as i looked into his eyes. soon the project would be over and we would go our separate ways i was planing on going into gene therapy and Peter planned to continue some research on plastic digesting bacteria. it was then that i realized how much i was going to miss him. the PCR machine dinged and i reached out to open it my hand meet Peters which had been going to do the same. the touch was electric we both froze looking at each other before leaning in and kissing each other deeply. my hand slid down over his thigh to his ass. his tongue roamed my mouth entwining with my tongue before he broke away to kiss into my neck. we stumbled back onto a chair. i straddled Peters lap kneeling on the seat ether side of his legs. i pulled away to rip off my lab coat at drop it to the floor quickly followed by my t shirt and bra. Peter stared in wonder at my breast before leaning in and kissing them gently and then sucking on the nipple making me moan, his hands slipping down the back of my jeans cupping my ass. i fiddled about with his flies until i finally got his firm shaft in my hand it was larger than i had imagined and felt wonderful i grasped it tightly and started to pump up and down. "oh fuck Katie that feels so good, just let me strip first, ohhh fuck your hands are just so soft and delicate wrapped around my shaft." i stood up and he stripped in what seemed like seconds. i pulled my trousers down to reveal my soft shaven pussy and then climbed back onto him wrapping my long slender fingers round his cock my thighs and ass sitting on his smooth strong legs. i decided not to wast his first cum on my hands and climbed off "no wait where are you going that felt sooo good....oh ohh oohh thats nice" Peter stopped as is slid his cock into my mouth circling my tongue around it and then sliding down sucking his whole length while my hands cupped and caressed his balls. It turned out he han't had sex in over a year so his first cum came as a surprise when he gripped the back of my head going "oooooooooooh fuck OOOOOH fuck Uh uh uh fUuUuuuUUUK" hepumped load after load into my mouth i tried to swallow it all but he was cumming so fucking hard it was impossible and some spurted out over my chin and dripping down onto my breasts and over his balls. i slid back so only his bell end was in my mouth so i had more room and contiued to swallow load after load of cum until he had finally finished.
i looked up and smiled swallowing the last of his cum "did you enjoy that by any chance babe?"
"that was amazing i im so horny for you right now"
"your looking a bit droopy to me, lets get you back to a full hard on so you can make me the happiest girl alive" with this i climb back onto him and start to make out with his grinding my naked body against him. my breast were pressed against his firm abs and my pussy grinding against his rapidly hardening dick. when it was hard it was slipping into me slightly as i ground against it i rubbed my clit on it making me shiver with anticipation of what was to come. i rose up allowing his dick to rise before sliding down forcing it into my wet cunt. i could feel it sliding into me pushing apart my tight pussy walls.
i moaned as he started gently thrusting into me i started to ride up and down my breast rubbing against his body as i did so my hands quested over his body tracing my hands around the lines of his muscles and running them through his hair as i threw my head back and moan in pleasure as his cock ploughed into me i was highly charged after sucking him off and grinding against him so it didnt take long for me to reach the point where i could feel the orgasm building and feel waves of pure pleasure pulsing through me
i buried my head in his neck as i screamed out as i was hit by wave after wave of my orgasm. my pussy walls contracted around Peters cock and my arms latched onto him but he kept going pumping and pumping into me not letting me fall from the plateau  just makining it build more and more until i was reaching a new more intense peak my whole body was shuddering convulsing with the pleasure, i caused the back of the chair to break Peter fell back causing his hip to thrust up into my hard making me scream with pleasure as i convulse over him. then i feel something new other than the deep penetration and orgasm witch was slowly abating or i wouldn't have noticed it. Peter cock was starting to pump another load of cum into my quivering pussy this exited me as i love it when guys cum. my whole body quivered with excitement as he exploded for the second time into me. his cum mixed with my juices as leaked back out of my pussy drenching his balls and his lovely shaved crotch.
we rolled of the broken chair and lay on the floor together his cockk limp in my pussy in each others arms until i start to feel it twitch and start to grow a little i smile and look at him "ready for a little more now are we"
"mmmm" he nodded
"well hows about this then i ask as i drape myself over the broken chair exposing my soft round ass to him. he grinned as he slipped into my pussy to gain a bit of lubrication and then slowly wiggled into my ass, his cock forcing its way into the impossibly tight passage way.i pushed back against him to give him a hand before he slid out and slowly thrust back in again, each time he repeated this he was able to get a little further  in until he could thrust all the way into his hilt then it really started. he sped up ramming himself into my ass while his hand rubbed and fingered my clit sending shivers of excitement through me as i felt his balls slap against my pussy. i could hear him grunting behind me as he pounded away. "oh fuck Peter you so fucking big it like your going to rip me in two"
"Fuck Katie, baby your so fucking tight your ass is perfect, why have UH we not fucked uhmm before now"Peter grunted in replie.
"I have no idea this is so amazing i never want to stop, screw resarch im spending the rest of my life, Oh fuck keep doing that with your hand oohhhhh yeah phh fuckfuckfuck uh,  im spending the rest of my life fucking you"
i was close to orgasming as by Peters jerky movements i could feel he was too so i pushed back harder onnto him and tensed my ass trapping his cock in, exerting pressure all over it as he tried to pull it out causing him to shudder as he passed the point of no return and just thrust deep into my ass as far as he could go and his dick started to pulse the cum from it shiitong forward, with my ass tightly cleansed the cum just forced its way forward deeper and deeper into my anus. this gave me so much pleasure and his hands didnt stop rubbing over my clit. i felt the orgasm explode through my body causing me to clench every muscle causing me to fall off the ruined chair and i would have fallen to the ground but for Peter catching me i as curled helpless in the throws of the orgasm i could still dimly feel the force of his cock still pushing cum into my ass before i blacked out in pleasure. i woke a few seconds later still coming back from the orgasm with Peter still firmly wedged into my ass his arms wrapped round me. we stayed like this for a good few hours neither of us wanting to break away from the other.