Time to try things on!

Karen finishes picking out clothes for you and the two of you head to the fitting rooms. Upon arriving, you're greeted by another store employee. "Hello, how many items do we have to try on today?" "Oh, ten I think?" replies Karen. The employee hands Karen a tag with the number 10 printed on it and responds, "Alright, why don't you head into the first room on the left, and don't forget, any items that end up with odors or stains during the fitting process must be purchased!" and winks at Karen. Karen grabs your hand and pulls you into the dressing room. "Okay Dougie, let's see how these look on you! Strip down and I'll let you pick which one to try on first." You reluctantly remove your street clothes and resign yourself to the humiliation of trying on a series of skimpy clothes for Karen's enjoyment. You make the mistake of turning your back to Karen while you're bending over to remove your pants and let out a surprised yelp when she slaps your butt. "Hehehe so jumpy Dougie, don't worry I don't bite! Which one do you want to try on first?" she jokes. "Okay Karen, let's start with the jeans shorts." you say. "But Dougie what about your undies? You don't want to be going commando in your new shorts do you? Why don't you put this on first?" Karen holds up a bright red jockstrap that reminds you of the pink "BUTTSLUT" undies you were wearing when she broke open your virgin asshole yesterday. The waistband on this one says "GAPE ME". That thought sends a shudder down your spine as you take it from her and slide it onto your legs. You're facing Karen while doing this and she suggests, "Why don't you turn around Dougie, and slow down. I want you to give me a hot steamy show!" You look at Karen incredulously but before she can react and berate you, you turn around and bend over. You slowly pull the red underwear up your legs, stopping at the cleft of your butt and letting the waistband cup your asscheeks, pushing your butt up into an irresistible bubble. Karen's almost drooling on herself watching you do this and as you continue to pull the jockstrap on, the waistband slips quickly over your butt and falls into place, jiggling slightly. You finish pulling it into its final position - the leg straps rest right at the crease between your butt and thighs, pushing your cheeks up while the fabric at the top and sides push them together and down. This causes your booty to jut out an extra couple of inches, creating a perfectly fuckable bubble butt. Karen is awestruck by the sight in front of her and says "Oh my god Dougie you look so fucking sexy! I can't believe how good you look in those undies! You have to turn around and see your ass!" You turn around and look at your ass in the mirror. Even though you wish you could just put your regular clothes back on, Karen is right, your butt does look great! Your confidence in your personal appearance grows alongside a creeping feeling of dread as you think about the consequences of turning Karen on too much.

"Okay now for the shorts!" she says. You grab the jeans shorts from their hanger and treat Karen to the same sexy show you put on with the jockstrap, slowly sliding them up your legs and over your butt. Once you've got them on they rest just above your hips and squeeze your ass tight. There's a clear indentation along the rear where the material clings to your cheeks and hugs your asscrack. "Okay now put on one of the shirts!" Karen says. You look at your options. Every single one of them has an incredibly demeaning slogan on the front. Unable to make a decision, you close your eyes and grab one. "XXXL SHECOCKS ONLY" The shirt, if you could call it that, is a white spaghetti strap crop top that has that slogan plastered across it in neon pink. You pull it on over your torso and look in the mirror. You have no idea what to think of the outfit. Your midriff and almost all of your legs are exposed. The shirt and shorts hug your figure tightly and you know if you were to turn around you'd see an irresistible ass. The one thing that's clear to you is that it screams "FUCK ME!!!" but based on your experience with Karen the day before that's the last thing you want. "Turn around Dougie, let me see!" says Karen. "Oh my god Dougie this is perfect! I'm so glad we came here you look great! I can't wait to go out and for people to see me with this hot piece of ass by my side!" with that she lightly spanks your butt, causing you to flinch, at which she giggles lightly.

"Okay Dougie, now it's my turn to pick!" says Karen. She turns around and looks over the clothes she's picked out for you. From your point of view you're presented with her huge, fat ass right in your face. After deliberating for a moment she hands you two garments: the spandex hot pants and a neon blue g-string that says "BOIPUSSY" on the waistband. "Okay Dougie, same deal as before, let's see how these fit you!" You bend over and slowly pull on the g-string as per Karen's instructions. You hear her breath quicken behind you and peek at her between your legs. She's started to rub her monster cock through her tight jeans! You can see the clear outline of her fleshy cockhead almost reaching her knee, and you know from experience she's not even fully hard yet! You finish pulling on the g-string and turn around to face Karen. These undies are much tighter in the crotch area and your cock and balls are clearly outlined in their pouch, creating a small bulge. "Hehehe your dickie looks so cute in those Dougie!" Karen laughs. You blush, seeing how tiny your cock looks in comparison to the anaconda running down one leg of her jeans. The straps rest above your hips, closer to your waist, creating an alluring "V" shape that points directly towards your ass. "Okay now put on the pants!" Karen orders. You bend over to pull them on and as you get them up and over your ass, you feel a breeze in the back. "Karen I think these are broken, there's a ripped seam in the back." The hotpants are ridiculously skimpy, with more than half of your asscheeks exposed when they reach their final resting spot. You stand up and Karen says "Wait Dougie, bend over again!" You obey, putting your hands on the fitting room bench and bending over at the hips.

"I don't think those are broken Dougie, they've got a built in dickhole!" Before you can respond, you feel Karen's huge hands encircling your small waist and her massive pole grinding up against your butt! "Since this is the fitting room, I think it's reasonable to make sure that my cock fits through the hole in these!" Karen releases your waist, causing you to fall forward and hit your head on the mirror. In this position your face is resting on the bench with your ass pointed in the air right at Karen! Behind you, you hear Karen unzipping her jeans and in no time you feel a big, hot, fleshy invader poking at your backdoor. You're still recovering from hitting your head on the mirror as Karen's cock spurts a jet of hot sticky precum directly through the hole in your shorts and into your g-string. Her precum is so hot it almost stings, and your asshole is still bruised, swollen, and sensitive from the workout she gave it the evening before. Insensitive to your anus's current condition, Karen brazenly begins tapping her cockhead at your backdoor. As you regain your senses, you realize you're still wearing the thong! "Karen w-wait" you stammer but you're too late. Karen's focus is locked on jamming her cockhead into your ass. With a loud SNAP! the straps of your g-string tear away from the crotch and Karen's head begins to make headway into your ass. If she doesn't stop she's going to push your underwear into your asshole! Unsurprisingly, she has no intention of stopping. Sensing the absence of the resistance provided by your underwear, she redoubles her efforts and rams her cockhead into your ass. You scream out in pain as her flared head rakes against your swollen rectum and her massive cock pushes its way inside of your abused hole.

She starts pumping your ass rhythmically, grunting and panting at the exertion as she reopens your ass for another pounding. Every time she thrusts, your head smacks up against the dressing room mirror as your body gets pulled back and forth by the fleshy mass of her cock. More than half of the skimpy g-string you were wearing is now sliding in and out of your asshole along side Karen's invading schlong. Even through your suffering, pleasure ripples through your body as Karen's fat mushroom shaped cockhead and your wayward underwear take turns scraping across your prostate. Your cock is hard as a rock and starts to drip precum into your spandex hotpants. Karen's view is spectacular. Now fully hard, her iron-hard bottle-thick cock is pistoning in and out of your abused hole at a wild pace. The girth of her cock fills the hole in the back of your shorts completely, stretching the spandex so far that you can swear you hear fibers snapping as she pounds you. With each trip in and out of your rectum, her cock brutally pulls the inside of your rectum out with it only to be smashed back inside. Her thrusting causes the parts of the thong that remain outside of your ass to flap around wildly. If someone were to walk in on Karen jackhammering you, the one thing they could be certain of is that she is dominating you completely.

Karen's massive hairless balls thud into your spandex-clad package over and over as she slams your ass, causing you to wince every time her cock fills your insides. Karen's pace increases as her orgasm rises and you just can't take it anymore. The **** your prostate is taking causes you to cum hard and your cock starts spurting your meager load all over the inside of your shorts. Your orgasm subsides as Karen continues to violently rail your ass. There's no relief for your prostate as the continued stimulation causes your cock to dribble weakly while Karen pounds you. Her pace quickens again and she fucks you harder, smashing your head into the mirror again and causing cracks to spiderweb across its surface. As she reaches the point of no return, Karen pulls her cock all the way out of your ass and slams it back in one last time before she begins unloading into your bowels. Her white hot cum almost burns your insides as she pours her thick load into your intestines. You brace yourself, anticipating being filled up like a water balloon again by her copious load but this time she pulls her cock out of you after a couple of shots with a loud POP! Instead of filling your ass, she aims her cock at your gaping hole and drenches your ass in her cum. Each shot splashes all over the surface of your upturned ass. Once your bubble butt is covered to her satisfaction, she repositions and takes aim at your back, which she plasters with another three shots. As her orgasm begins to taper off, she fires off a couple of shots towards your head, which hit your hair, the mirror, and the side of your face as her orgasm subsides.

"Oh my god Dougie, that was incredible! Your ass is still so tight and grippy even after our fun yesterday, your little booty sucked the cum out of my big cock so good!" You barely hear Karen as you pant, trying to catch your breath. Your face is flushed red from the exertion and overstimulation of taking Karen's thick monster once again. Your hair is matted down with her cum and your head is on fire from being battered over and over against the dressing room mirror. You stumble around in a daze as Karen grabs the clothes and hauls you to your feet. "Hehehe come on Dougie, it's time to go pay!" she chuckles. The two of you walk out of the dressing room and are greeted again by the shop employee "Looks like things went pretty well in there!" she says, eyeing you in your cum-glazed stupor. "Everything fit okay?" she asks. "Oh yes, thank you so much for your help!" Karen replies. The employee takes Karen's tag and counts the items. "Oh don't forget about these shorts!" Karen says, pointing to the spandex hotpants you're still wearing. "Great...oh hmmm. That only makes nine items, it seems like you're missing one?" the employe says, raising an eyebrow. "Oh I'm so sorry, just a second!" Karen says. During this exchange, you've been standing off the side trying to make sense of what happened in the dressing room, which is more difficult than you would've imagined thanks to the smashing your head took against the mirror. You're caught by surprise when Karen reaches down for you and hoists you into the air. She holds you facing the dressing room assistant and using one arm pulls your legs up behind your head, folding you in half. Your ass, freshly gaped, pulses weakly trying to close and drips cum onto the floor. You yelp in surprise as Karen balls her hand up into a fist and pops it right into your distended rectum. The remaining cum in your anal canal acts as lube as she works her fist into your gaping asshole. Even in your delirious state, your cheeks flush a deep red as Karen fists you in front of this complete stranger. You shift uncomfortably in her grasp as she unclenches her fist and grabs something. In one smooth motion, she pulls her hand out of your ass with a loud POP! and holds up her prize. Hanging from her hand, you see the bright blue g-string you were wearing when Karen began bashing in your booty hole. The garment is in a sorry state, with most of the straps detached from each other. Globs of sticky cum cover the waistband, but looking closely you can still make out the word "BOIPUSSY" repeated over and over on its surface. Karen drops it on the counter with a sickening SPLAT! as droplets of cum spray around its landing spot. "Oh my, the two of you really did have fun in there!" The dressing room attendant says with a chuckle. "I'm sure you remember our policy about stains and odors?" "Oh yes, don't worry we'll be buying this and everything else, thanks again for your help!" says Karen. She puts you down and hands you the thong, which she makes you carry to the exit and place on the checkout counter. The woman whose ass you were admiring on the way in scans the items Karen's picked out for you and stifles a chuckle when Karen makes you give her the cum-soaked thong to scan. "Thanks for your business have a great day!" the beautiful saleswoman says. The two of you walk out of the store back into the mall's main concourse.