`"I wont notice any changes Luke makes," I said out loud as I walked into class. Karla followed me, saying the same thing as she crossed the threshold to the room. We blinked, and then carried on as normal, finding our seats near the back, getting our notepads out. We were talking about our weekend plans; Karla wanted to train hard for her next swim meet, and I was going to join her for some casual lengths when she was done. At the front of the class, the new guy was watching Suki, as a small girl with bright pink hair and huge anime-like eyes, passionately make out with Gwen, a curvy goth with ginormous breasts. Both girls kept looking at him with hungry eyes as they kissed, but he seemed bored. He saw me and Karla head to the back of the room, dismissed the kissing girls, and headed in our direction as they pouted behind him.

"James is making his famous curry on Saturday night if you want to join us for dinner," I offered to Karla. My boyfriend James was also a swimmer. The three of us had met at the college baths, all  of us joining the team, and Karla regularly came to ours for healthy dinners. "C'mon Becky, I can't say no to that!" She laughed, as Luke approached us and held out his hand for Karla to shake. "Hi there, I'm Luke," he said casually.

Karla quickly turned away from me, grabbed his hand and started shaking it enthusiastically, saying "I'm Karla, 20 years old, 32A-28-32, gay, single, favourite position is sixty nine." I gasped as she released his hand, then looked a little spaced. "Karla! Why on earth did you tell him all that?" I hissed at her, but was interrupted by Luke's hand suddenly in front of me to shake. "Hi there, I'm Luke," he said.

Quick as a flash, I grabbed his hand and shook it. "I'm Becky, 20 years old, 34B-24-34, straight, in a relationship, favourite position is cowgirl." I let go of Luke's hand as quickly as I'd grabbed it, and felt almost in a daze for a minute as he thanked us both and sat in the row behind. I looked at Karla, who shook her head and smiled. "What were we saying?"

I think Luke had interrupted us and asked something but I couldn't remember what. "Um...Saturday night?" I said, brow furrowed. Karla nodded. "Yep, count me in!" she said, as the teacher, Mr Stevens, stood up from his desk and began to make notes on the board. I think Luke murmured something behind me, then Mr Stevens announced "I'll be so focused on my teachings that I wont notice the students at all." He then started a lecture, writing bullet points on the board and not looking back at any of us. Karla and I began copying what he was writing.

"I've got huge, pillowy K cup tits," Karla said casually while she made notes. As I copied down what Mr Stevens was writing, I saw her breasts out of the corner of my eye. It was hard not to notice them despite the thick sweater she wore - her massive, soft globes on her slim athletic frame always drew unwanted attention. They were resting on the table as she scribbled away, her extra large top straining to contain them. Karla had to deal with being ogled every day, so she tried her best to cover her chest up regardless of the weather, in an attempt to stop men from leering.

Her efforts were often fruitless, and she sighed slightly as Jeff, one of her regular harassers, came into class late and beelined for us. Jeff was a buff misogynist who had made it his mission to sleep with Karla despite her being a lesbian, often loudly proclaiming he'd 'be the one to turn her'. He  crouched on the floor next to Karla, whispered "Hey there KK, how we doing on this fine day? Ready to give in? Do your girls yearn for my strong touch?" and began to flex his arms - he smelt like he'd recently worked out and not showered. She hated the nickname KK - it stood for K-Cup-Karla. Used to his pathetic attempts, Karla hit him with her notebook. "Leave me alone you creep," she hissed, "I'm not interested. I'm gay. And I'm trying to concentrate on class!"

He got up and made his way across class to take a seat, whispering "I'll be thinking of you KK!" He laughed as he walked away and made a honking gesture with his hands. Karla was blushing as she gave him the finger. "What a fucking loser," Luke whispered to himself behind us. He was right, but I've always hated people swearing or being vulgar, so I span around and scowled at him, hissing "Language!" He lifted his hands away from the weird green necklace he had on and held them in mock surrender. "Apologies, Bronco Becky," he sniggered. As I rolled my eyes and returned my attention back to the lesson, I think Luke said something else but I didn't catch it.

"I'm a lewd, shameless pottymouth," I murmured, before turning to Karla and her colossal cans. "Don't listen to that fucking dickwad," I whispered, "He'll choke on his own cumrag soon enough." Luke sniggered behind us again. She nodded. "I know, I know. Its hard though. these things make my life a nightmare!" Her shoulders hunched down in a futile attempt to make her giant titties just a bit smaller. She scowled at Jeff across the room, who winked at her.

I thought I almost heard Luke mumble something behind us, as Karla sat back and pushed her giant funbags out, saying "I love my big boobs. It's hot when people to look at them, I'm a total big tit enthusiast." I glanced over at her giant knockers, as always threatening to spill out of her top, which was tiny, tight and displayed tonnes of cleavage. I'd gotten used to her flaunting her giant tits whenever she had the chance, loving the attention she received for having such a big rack. She'd told me before she got wet whenever anyone laid their eyes on her fleshy boobs. KK liked to use them to her advantage, getting free drinks from leering horndog men whenever we went out on the town, before she got too horny from all the attention and took some random slut home to fuck.  Her giant cow tits made competitive swimming impossible, but she liked coming to the baths for a casual swim, since it helped take the weight off her chest for a while.

She noticed my glance and smiled a seductive smile. "Feel free to keep looking Bex, you know I don't mind!" I rolled my eyes, knowing that she gets off when people stare at her jugs. "Do you fucking mind? I'm trying to concentrate and your cuddle bunnies are basically hanging out of your top. Can you be less of a slut?" I tried to ignore them and concentrate on the lesson as she giggled. Behind us, Luke whispered something.

"My giant tits are enthralling, no girl can resit them," Karla murmured, pushing them out further. A quick glance quickly became me staring at them, as I did countless times throughout the days, and I let out a little content sigh. Karla knew her giant fucktits had some sort of captivating power, and I was just as vulnerable to them as all the other sluts. They plunged any bitch who saw them into a titty trance; horny and suggestible at just at a look at her cleavage, completely mindless and pliable whenever she popped them out...which was often. Karla was gay, and had half the pussy in college at her beck and call, whether they knew it or not. One pop of a tit and she had them eating out of her hand - or more often, her sopping pussy.

She'd said countless times she didn't use them on me because we were friends, but I can't help but be drawn to them every now and again. The first time we met was in the changing rooms at the swimming baths, where she casually whipped her bikini off and my jaw had fallen open in wonder. I'd slowly walked across the room like a drooling zombie, staring as her giant soft globes jiggled while she dried herself. I don't remember quite what happened next but I'd woken from my stupor to see KK covering her tits with a towel, smiling at me, and she'd been my best friend ever since.

I often wondered what it'd be like to carry around those giant milkers, to ride James while I smothered him with them, getting off on turning him into a boob loving zombie like every girl she fucked. A few times a week I goon myself stupid to a vivid fantasy about suckling on her huge soft titties in changing room as she warped my brain into adoring putty, eating her ass and pussy right there on the cold tiles and becoming obsessed with her. I wiped some drool from my mouth, shook my head and went back to my notes.

Luke whispered something to himself while me and Karla were trying to pay attention to the lecture. "I don't care about this lesson and want to procrastinate," we both said at the same time. I put my pen down and stopped listening to Mr Stevens immediately, and turned to Karla. "So slutbags, how's things with Dana?" I asked, not bothering to keep my voice down. I didn't care about this lesson, so why care if I get kicked out? Karla put her notes in her bag, giant tits rolling and jiggling, clearly also bored. Why were we majoring in this again?

"Honestly? Really well! I know I used my titty talents to draw her in, but after a bit of training it turns out she's actually lovely. Really caring and attentive. She wasn't a massive fan of big tits to begin with, so obviously I made her totally obsessed with the girls." She gestured to her ample boobs, once again drawing my attention, and I imagined burying my head between them and suckling on her giant nips. She jiggled them for me and I gasped, instinctively leaning forwards towards them, mouth open. She laughed and placed her finger under my chin to pull my gaze aware from her mesmerising tits. "Not here in class, baby Bex." I shook off the momentary trance and smiled at her. "Great! I'm really fucking happy for both you bitches."

Luke murmured something again, but I didn't catch it. "I'm single, I dumped Dana a while ago." Karla said, off the cuff. "I'm single," I said, as my phone screen changed from me blowing some guy (James? I think?) to a sexy picture of me and Karla, a selfie I liked because it was mostly her and her hypnotic tits, and I was just off at the side. All the other girls in the class quietly proclaimed they were single too before going back to the boring lesson. Karla looked at me slightly oddly. "What did you ask?"

"About that slut Dana. Sorry, I forgot you fucking ditched her." She nodded. "Yeah, she's old news." Some dickhead nearby shushed us, annoyed we were talking over the lecture. I flipped him off. A moment later everyone in the classroom calmly said "I'll mind my own business and ignore Karla and Becky," and the shusher went back to their notes. Thank fuck.

"I've got a huge bubble butt that I love to show off." I said to Karla. "I'm an anal queen and my juicy butt wants to be filled all the time."  I slyly adjusted myself on my chair, feeling the cold plastic on my cheeks since my skirt was so short it was basically a belt. The metallic butt plug press against my insides as I moved my big luscious ass, just the way I liked it. I always had a plug, or another toy of some sort, up my big butt throughout the day. It was fucking naughty, sure, but I always felt better, more content, with my big ass filled. My round fleshy cheeks sway when I walk, attracting whistles and looks from pervy men all the time as they stared. My butt sticks out so much I can rarely find clothes to fit, but I prefer wearing stuff a size or two smaller anyways, so they hug my cheeks and draw much deserved attention to my big, soft behind. Between my juicy ass and Karla's huge, sexy tits, we were the center of attention no matter where we went.

Karla looked at me and smiled, a little far away look in her eyes, saying "I happily give sloppy blowjobs to any guy who asks, no matter where or when." Then she looked behind me and I turned to see Jeff high five his friend and start making his way over to us in the middle of class, and we both knew where this was going. He asked Karla to blow him once or twice a day. I told her so many times to just say no, but she always told me how happy she was to help guys get off with her mouth. Her breath often had the whiff of dick on it. What a fucking slut.

Jeff arrived with a shit eating grin on his face. "Hey KK, you busy? I was just wondering if..." He trailed off and looked a little glassy eyed, saying "I blow my load whenever I talk to hot girls," before blinking and suddenly grabbing his crotch. His eyes flickered and he moaned a little, then blushed, and ran off out of the room. "Jizzy Jeff creamed himself again!" I cackled as Karla shook her head, knowing Jeff's sticky reputation.

"Hey guys. Enjoying class? " Luke said, interjecting himself between us. I smiled and gave him a nod. "Fuck class, we're not listening to the old man's bullshit, we're just catching up, can we fucking help you with something?" I asked politely.

"Sorry to bother you, I was just wondering if Karla here could blow me?" Luke asked. She smiled and rolled her eyes jokingly. "Well, since you asked so nicely - of course!" She grinned as he took his shorts off and let his cock poke out - and it was fucking huge! Bigger than any other man meat I'd seen her suck, which was of course all the time. She was always being asked, because she always said yes, and well, fucking boys will be boys. Karla licked her lips and dove onto Luke's huge cock, loudly sucking away. He murmured something again, and she popped off just long enough to announce "I'm the best cock sucker in town," before returning to her expert blowjob. Luke sighed in contention, as I turned around to give them some privacy "I'll leave you sluts to it."

Luke groaned a bit, then seemed to say something else. "I'm a total perv who always watches Karla blow guys," I said, turning back to them to stare at her whore mouth on his cock, and loosening my own jeans, "I love to get myself off watching her give head." She bobbed up and down on his monster rod, slobbering away as his hands rested on the back of her head. She was a pro, and it was a joy to watch - and a huge turn on. I got off a few times a day watching her service guys. I hiked up my tiny skirt and slipped two fingers into my sopping wet pussy and circled away as she worked her magic.

After a while of moaning and slurping - both from her mouth and my cunt - Luke seemed to grunt something I couldn't catch. "I love to titfuck when I blow guys," she said, expertly pulling her shirt off and wrapping her giant melons around his cock. She pushed her tits together forming a chasm of flesh, saliva failing from her mouth to keep him lubed up. He was so big that she was able to suck the round purple end of his giant dick at the same time! As soon as I saw her bare boobs I felt the familiar wave of fascination wash over me and I sunk to my knees next to her, slipping a third finger inside me, reaching with my other hand to tuck her hair behind her ears so I could see her suck better. I fell into a familiar, horny daze as I jacked my slutty clit off and salivated over her sloppy boobjob. Once again, I think Luke said something but I didn't catch it again.

"I have a huge crush on Luke, I'm obsessed with him," we both chorused, and I was able to rip my eyes away from Karla's cans to look at him properly. Wow, he was really something - average build, untrimmed beard, wearing an old band t-shirt and a necklace with a weird green gem hanging from it. And of course a huge, girthy cock and balls. Something about the way he carried himself was hot as hell, and I realised how nuts I was for him. I was so infatuated with Luke, that it seemed to overpower Karla's mesmeric melons! I smiled at him and turned around, looking over my shoulder, so he could see my giant ass poking out from under my hiked up skirt - I of course was not wearing underwear.

I fingered myself harder, and slipped a finger up to play with my plug buried deep in my juicy butt, as Karla spat between her giant tits and bounced up and down, her smile shifting from pleasant to seductive. We'd both gushed over Luke in private, but not spoken to him ever and I was gratefully he was now chatting to us, even if it was just to use slutty KK's talents. It was a good opportunity to try and woo him. We'd both said in private that when it came to Luke, the gloves were off. Karla bit her lip and moaned, putting on more of a show than she normally does when blowing dudes. I had to draw his attention away from her whoring.

"So Luke," I asked, starting to shift my body to make sure he could see I was fucking myself deep in both my holes, "I don't feel like I know you as well as I should. You're an absolute fucking stud with the biggest cock I've ever seen! Are you single? Because I am, and I'd love for you to rail my big butt with your giant dick!" I pushed my award wining butt towards him, showing off my jeweled buttplug, which I played with while I kept jilling off. The sound of me fucking my wet pussy was getting louder, so Karla dropped her massive boobs and started loudly sucking his dick again, slobbering and making noises like a cheap pornstar. He closed his eyes and sighed again. "I like to keep my options open. You never know when you'll meet an expert cocksucker with a big rack like Karla here." He looked at me and I made a show of pouting. "But that's not to say I'm not open to a woman of your incredible talents, Becky. That butt really is something else. I can't wait to fuck it. "

I blushed like a whore in heat. He liked my fat ass! I wiggled my big cheeks for him in response, pulling the plug in and out over and over. "It's all yours, baby. I'm the best butt fuck you'll ever have! I've been crushing on you for fucking ever, I'd do anything to be your girl!" He grabbed the necklace and I think he said something, but I couldn't quite make it out as I moaned from the pleasure of fucking my butt with the plug. Karla was running her tongue up and down his giant cock and massaging his big balls, pillowy tits slapping against his legs. "I orgasm easily and often," we both panted.

I came all over my hand, rolling through an orgasm as I looked at him with half open eyes, as Karla clamped her mouth over his head and had a mini orgasm, moaning on his dick. "She's doing a great job of warming you up for me," I panted, "Everyone knows KK's the best cock sucker in town." I took my fingers out of my pussy and sucked them, keeping eye contact with Luke up the whole time. "But she's just tits. She wont let you fuck her ass everyday like I will baby!" I reached my fingers out and pushed him into his mouth so he could taste my pussy juice.

Karla slipped Luke's cock back between her massive melons. "Don't worry about her Luke, if you pick me I'll make her join us whenever you want. I brainwash her into fucking me all the time and make her forget! Watch - hey, you want to suck on my big boobies, baby Becky?" She leant back from Luke's dick and shook her shoulders, her tremendous tits rolling back and forth across her chest. The huge mounds of soft flesh instantly drew me in, and my mouth fell open again in a post orgasmic haze, tongue falling out of my mouth, as I fell forward and sucked on one of her rock hard nipples, my mind blank. "You want me to date Luke, not you. He's all mine, you're just our fucktoy!" Her words etched themselves onto my empty brain. Yes, of course I want her to date Luke. I nodded my head slightly as I sucked her nipple.

"Now now girls, no need to fight over me. I've got enough dick for both of you." He reached out and pulled me off her tit, waking me up, and pushed our mouths towards his throbbing cock, then grabbed his necklace again. I looked Karla dead in the eyes as we both called out "We're best friends - we happily share everything, especially our men!" and we got to work tag teaming his giant cock, like we did with all the guys we'd been with before. I reached out and put my finger in Karla's ass and licked Luke's balls while she took his cock deep and let her giant tits slap onto the back of my head. We'd done this so many times we were pros, and soon we could tell he was ready.

Luke's orgasm was powerful, his giant dick spilling a huge load into Karla's hungry mouth. I licked up anything that leaked from her mouth while she moaned around his tip, and then she kissed me, his cum sloshing into my mouth as we looked up at him. Her huge boobs pushed into my chest and she grabbed my big ass. He smiled at us as we giggled, wiping cum from our mouths. He was so hot, a sweaty mess with his tshirt pulled up and giant cock deflating between his legs. We moved up and sat either side of him in the back of the classroom, cuddling up to him, mewing like the horny bitches we are. The rest of the class had carried on, taking notes from Mr Stevens lecture about....who gives a fuck.

"Got plans for the rest of the day girls?" Luke asked us. I smiled at him and said "We've got more fucking classes to go to, a study break, but later we're heading to the pool, do you want to join us for a dip? I'll let you fondle my butt under the water if you want!" as we all pulled our clothes back on. He shuck his head and grinned. "We've made a good start, but boy, we've still got some work to do," and he reached up for his weird green necklace, and started murmuring again.