I was devastated the week after I found out I had accidentally fucked my mom in physical diagnostics class. I mean, it was weird enough to think I was supposed to be the model patient anonymously fucking my sister, but she was sort of a bitch and a part of me always wanted to stab her with my dick. After the revelation at dinner that my mom switched places with my sister, I stayed in my room and moped a lot. I couldn't figure out what to do next.
Tell my mom? She'd freak. My dad would fucking kill me and cut my dick off! Not say anything? Well the college expected me to come back to do more coital experiments. The professor kept emailing me to come in, reminding me that I owed them for botching that last experiment when my eager virgin cock accidentally slipped into my mom's asshole - an incident that made her yowl like a cat in heat and try to throw me off like a bucking bronco.
I couldn't ignore Professor Apple forever. His emails got more and more threatening, so finally I see an email - "YOUR ATTENDANCE REQUIRED" telling me to come to the lab and to wear my mask and lab coat.
I arrived to find Professor Apple and my mom sitting around an examination table. She's wearing a surgical mask and her lab coat as well, but I now recognized her hair, her eyes. I was totally surprised she didn't recognize me.
"Young man, I'm glad you're here." the professor began. "I know there was some discomfort and embarrassment last time you two worked together. My mom nodded. "But I want to work things out so that you two can perform for the good of the class. We are very lucky to have a volunteer with such a well trained vagina," he points to my mom, "and another volunteer who has been flexible and more than willing to try new things!" he points to me. "You gave your virginity for the sake of science - and we appreciate it deeply!"
"I've been talking to our young lady here, and we believe the best solution is for the two of you to get to know each other's bodies better before you're performing in front of the class."
"Listen, professor," I began, "I don't think I can do this anymore."
"Nonsense, everything will be fine. You'll see! And I will be here to keep things professional." The professor pats the top of the examination table, "Please hop up here."
I'm not sure what to do. Finally, I shake my head and hop up, my bare legs swinging in the cool lab air.
My mom suddenly gets up and stands in front of me.
The professor also stands close, "Part of building a rapport is to build familiarity. What we're going to do now has nothing to do with coitus or reproductive biology."
Thank goodness, I think.
The professor parts my lab coat so I'm sitting there with my junk exposed. "What we're going to do is develop a comfort level. Our female volunteer here will practice inserting a catheter in you. It's the best way for you two to trust each other and be comfortable.
"Oh, no!" I try to hop off the table, but my mom and the professor are standing in front. "I don't want to do this."
"You see," my mom says to the professor, "He's still pretty virginal, nervous about his body. I'll help him!" She bends down toward my crotch, but I push her away.
"Young man! That's very rude!" The professor snaps. "Need I remind you that you owe the college and this young lady?"
I shake my head violently. But the professor brings out a tray of equipment. It looks like tubes of lube.
The professor smiles, "Relax, young man. I was joking about the catheter! She's actually going to fellate you! Won't that be nice?"
Fellate? No way I'm going to let my mom give me head!
"OK, I'm afraid it's come to this." The professor reaches for a phone, "please send them in."
Before I know it, three big guys walk into the lab, all wearing surgeon's masks. I think one of them is possibly Ryan the bully.
The professor points to me, "Can you restrain him?" And Ryan walks behind me and grabs my arms behind me. I try shaking him off, but he's got me in a hold. My legs are flailing, kicking, but the other two guys grab a hold of my legs and hold them apart. I twist and flounder in their grip while the professor brings out the stirrups for the examination table - these are normally used by women having a gyno-exam.
"Calm down now, calm down! You can make this go easy for yourself and enjoy it. Just realize it's going to happen! This is for your own benefit!" The professor nods as the guys put my heels in the stirrups and tape my legs down. My mom walks between my legs and approaches my exposed crotch.
Why didn't I notice her wedding ring before? I watch as her soft hands take a hold of my soft dick. She massages my floppy cock and balls while I test my restraints by pulling and pushing the bonds holding my legs in place.
She keeps massaging me, admiring my soft organ, then sniffing me and breathing in my scent. Thankfully I had showered this morning. My mom is always reminding me to shower every day, though I always had showered before coming into the lab. Now, she's using her thumbs to massage the head of my cock, sliding my foreskin up and down.
"Standardized male, age 18, about to receive fellatio from a standardized female, age 40." The professor smiles. She continues to play with my foreskin, rolling it up and down.
"Fellatio," the professor is standing right beside her, "has no function in reproductive biology. But it is an act that has evolved to become part of foreplay. And this is exactly what I think is needed between you two - some foreplay before actual coitus in class. I think this will make our young male more considerate of his female volunteer!"
"He smells so good," my mom says as she buries her face in my crotch, rubbing my soft dick against her masked face. She then slides the bottom of her mask up so that her mouth is exposed. Then she kisses the length of my dick while I look away in horror. I can't watch. I try to move my legs, but the stirrups are keeping them spreadeagle while Ryan has my arms tucked behind my back.
She's soon mouthing my balls and rubbing her face in them. She's licking below them, licking my taint.
"Fuck, dude," Ryan says, "Why aren't you hard? I'm as stiff as a board!"
"This isn't happening! This isn't happening!" I whisper.
At that point, my mom swallows my soft dick whole. Her tongue whirls around me. I feel like my dick is in a washing machine as she licks, tongues and sucks. I can't stop it anymore. My cock starts to swell and grow in her hands and mouth. She proudly slides it out of her lips to show everyone how hard I am.
"Yeah, dude! Noice!" Ryan says, "Suck that dick!" Suck it!"
"Quiet!" the professor says. He too is fixated on my glistening, wet erection.
My mom starts licking my length - from tip to balls and up the sides - then she swallows and gulps me down. She has one hand firmly holding my shaft, another hand absently stroking my stomach and reaching up to my nipples.
"Mmmmmm," she murmurs sounds of pleasure, "tastes so good." She then deepthroats me and gags a little, releasing spit all over my trembling cock. She takes it out of her mouth again and talks to it, "Mmmmm, my former virgin boy has a beautiful, veiny penis." She then gulped me half-way down her hot wet mouth.
"Stop, please stop," I whisper - I keep looking away.
The professor grabs my foot, "Come on, son. Allow yourself to enjoy this. There is nothing dirty or wrong with fellatio. You are learning so much this way about your own body and a woman's body!"
"You have a beautiful penis, young man," my mom says. She's staring at my erection from every angle, then tapping her face while she feels up my abs. "So nicely shaped. You will make many women very, very happy." She gulps my head for a few more seconds. "I'm so honored to have been your first!"
"Oh god, no!" I groan. I try again to squirm out of Ryan's grip, but no use. He holds me securely as my mom eats me.
"What is your problem?" Ryan shakes his head as he pretzels my arms even tighter. "Just come already!"
But my mom isn't finished. She reaches out to run her hands along my outspread thighs and legs, savoring the touch. "I remember your hairy legs between my legs!" She holds my balls. "I remember these slapping against me. Your body is so firm! Didn't you like reverse cowgirl with me?"
I shake my head.
The professor squirms, "Let's stay focused on his genitals, shall we?"
"Sorry, professor," she says, "I don't have sex that often with my husband. In fact, the last time I had sex was with this young man, and it was incredibly enjoyable until that anal ending." She's rubbing my hairy legs, "How old did you say he is?"
The professor smirks, "He's just 18 years old."
"Oooooo," my mom moans, "so young, at his prime! I have a son his age!" At that, she nestles back between my legs and starts sucking hungrily. But this time, she reaches down between her own legs and starts playing with her clit.
"Yeah!" Ryan yelps, "She's a MILF! That's awesome. Lady, suck that teen dick like it's got the cure!"
"Quiet!" the professor warns him again.
I'm whimpering now. I'm close to coming but I don't want to come in my mother's mouth. I keep squirming which only makes the guys watching us squirm. Finally I glance down to see my mom's head bobbing up and down, listening to her slurping, watching her hand grip me while her other hand fingers herself.
"I need this dick!" she says between gulps. "I want it so much!" she slurps. "Mmmmm, tastes so good."
"Shit, I don't want to cum!" That seemed to signal my mother to suckle faster. The professor was eagerly leaning in close to watch the culmination of this forced blowjob.
"No, no! Geezus no!" I'm shaking my head, trying to get the image of her bobbing head out of my mind. The hot mouth on me. "I'm going to cum!" I seize up and spasm, my body twisting in place. I want to clamp my knees together but they're held apart in those damn stirrups. I erupt with jets of cum and my mother eagerly swallows it all like a hungry demon. She swallows and keeps a slurping rhythm so that her mouth is still working the head of my cock. Her tongue is dancing around the helmet, swishing liquid around. When I finish erupting, she takes her mouth off and then kisses the pouty mouth of my dick, rolling my foreskin back over the head.
I'm panting at this point. She's panting as well but staring intensely at my dick and occasionally sucking it clean of any post-cum oozing. "Very good boy," she says.