The classic "lab accident"

One of the girls Peter had in rotation in his nightly fantasies was the incredibly hot TA for his organic chemistry class. Miranda Kim was one of those people for whom college seemed effortless. Korean-American, pre-med, great grades. Already TAing as a junior undergrad. Core member of Delta-Chi, the sorority for the hot Asian-American girls. Dyed hair, great taste in fashion, smart, and the best body that a SoCal plastic surgeon could sculpt, with a size 0 waist and gravity defying C-cups.

Under the guise of wanting to get more lab time, but really just wanting to have an excuse to, well, interact with any one of the gorgeous women around him, he volunteered for unpaid work as a lab assistant for her. This meant early hours and late nights doing incredibly dull work, pipetting milliliters of solution A into solution B, programming machinery to do things in masse, all with incredibly volatile chemicals.

And, Miranda was no fool. She knew why the dorky freshman volunteered, and she wasn't going to turn down the free labor. But she wasn't going to spend any more time around the slightly-creepy-but-generally-harmless kid than needed.

So, Peter ended up doing hours of drudgery, and only seeing glimpses of Miranda as she stopped by the beginning or end of his shift to give him instructions / scold him on technique.

One Friday night, Peter was alone again in the lab. Outside of the 2nd-floor windows he saw small clusters of friends dressed up, shouting, laughing, heading to one party or the other. Bored, frustrated, and lonely, Peter decided to take a few shortcuts. He wanted to get out of there ASAP, and back in his dorm room playing videogames was better than being trapped here.

In his haste, though, he sloshed a beaker of of 4 molar benzenehexacarboxylic acid mixed into a colloid of ethyl 4-methylpentanoate and 1,4-orthodimethylbenzene over his bare hand as he was transferring from one station to another.

Shit! he thought to himself. Shit shit shit, his internal monologue continued.

These organic chemicals had really unpredictable effects on the human body. He ran over to the nearest sink and started rinsing off his hand. His skin was...tingling? a bit, but otherwise he didn't seem the worse for wear. With the blithe optimism of an 18-year old, Peter figured he was fine. Shaking his head at his own stupidity, Peter finished up the lab work.

About an hour later, he was finally done. Packing up his stuff, he noticed that Miranda had left behind her sorority hoodie she always wore in class on her desk. He was feeling extra horny for some reason, and before he thought about it too much, he leaned over and took a big sniff. It smelled of floral shampoo, skin care products, and a deeper animal aroma that got Peter rock-hard in his old khakis. It was like his brain turned off. His cock started tingling, too. If he'd been paying attention, he would've realized it was the same feeling as on his hand earlier, but instead, Peter's internal monologue was going, Well, I don't want to walk home through the quad with a massive boner in my pants, I better just rub one out before going home. Maybe while smelling Miranda's hoodie. Yeah, that makes sense!

Peter reached down and unzipped with his left hand, while his right hand clutched the sweet-smelling sweater to his face, taking deep breaths of his fantasy-girl's aroma. Was his cock bigger and harder than normal? Nah, he must've just been really, really turned on by how guilty he felt about defiling his unattainable TA's clothing. Surprisingly quickly, he realized he was going to cum. Not thinking, Peter pulled the sweater down to his crotch, humped it a couple of times, and then his eyes rolled back in his head as an absolutely massive orgasm wracked his body.

Shot after shot into the cornflower blue hoodie erupted from his tool as electricity raced from his brain down to his balls. Finally, after what felt like a full minute, he was able to regain control.

Post-nut clarity is a helluva ****, and Peter's monologue now shifted. Fuck that was so stupid, wow I really ruined her hoodie, I should probably just throw it out and hope she thinks she lost it, maybe I should wash it? wait how would I explain giving it back to her, "here's your washed hoodie no nothing creepy happened", god, that was such a great orgasm, do I have a new fetish? I should get the hell out of here, oh wow it kinda stinks of my cum in here, I hope nobody comes in before it airs out, I should leave the windows open, then shove this in my backpack, get back to the dorm, and throw it out in the dumpster behind the dorm.

Plan of action decided, Peter sprung into action... right as the door opened and Miranda Kim walked in, hollering to somebody outside, "I'll just be a second! Just gotta grab my hoodie!"

oh shit, i'm completely fucked