Leave no girl unchecked. Keep looking

You scan over the class once more and spot a girl near the far wall glaring at you intensely from underneath a large black hoodie as she grips the desk and tries to breath calmly.

"Who is that one in the back?"

"Oh my, who let THAT out of the backrooms? Oh well, she is technically for sale so let me introduce you."

The Madame places a hand on your shoulder and walks the two of you over for a closer look. Now you are only a few feet away you can get a better look at her. Straight black hair frames a face with almost marble pale skin like she had not seen the sun in months, or in fact ever. Staring at her from this close finally breaks away the glare from her dark brown eyes so you take a look at the rest of her. At least, as best as you are able to through that oversized hoodie she has buried herself in. Her torso appears... bulky, and you wonder if you have chosen a larger women than you may have normally. Although their wasn't any sign of extra weight in her face, so deciding you have nothing to lose you roll with it. She looks back at you once more, nodding almost imperceptibly to herself as if she has made some kind decision.

Gripping the desk even tighter, enough that her fingers would be turning white if her hands were not so pale, her gaze still transfixed on you she finally speaks, "Please, I-I will do whatever it is you want, just pick me and let the others go"

The Madame rolls her eyes as she turns back to you, "This creature is, well actually she never actually came to us with a name. We found her on our doorstep, barely conscious and absolutely plastered head to toe with semen so we ended up referring to her as Gutterslut."

Upon hearing this new name 'Gutterslut' jumps in her seat with the shock clearly showing on her face, but still barely managing to move herself more than an inch thanks to your previous orders.

"There are a few problems with this one unfortunately and it looks like its happening already. We usually have her on cleaning duty behind the scenes and keep her blindfolded if we have to have her around the customers. You see the way she has not been able to keep her eyes off you this entire time?" Indeed, you turn your glance back over and see that even as she is shaking her head knowing that something is going to twist her mind from underneath her, she still can not bring herself to look away from you. "Whenever she spends more than a few minutes in the presence of any man she 'imprints' on them, forming within her own mind some kind of ****, subservient obsession for him. Stand up and take off that rag Gutterslut, let the good sir take a proper look at you."

Taking a deep breath she slowly, carefully stands up ensuring her eyes remain locked with yours the whole time thanks to Madam Martell's new backstory. Gutterslut takes the base of the hoodie and begins to roll up the excess material in her hands until she has the whole thing pulled taught to somewhere around her navel. This reveals the plain white tank top she is wearing underneath but more importantly fails to reveal anything more than a slight pudge, and certainly nothing like the amount of belly you expected. Before you can conclude for yourself what it was that made her form look so bulky earlier, she whips the whole thing off in one practiced movement making the answer utterly obvious to everyone.

A small gasp and a quiet "wow!" come from one the remaining girls that are still able to speak freely as the largest breasts you have ever seen in real life jiggle into view even in spite of her top and underwear holding them down. Dwarfing this girls frame they rest heavily against her chest, massive enough to hide the entirety of her rib cage. Gutterslut lets the hoodie fall to floor and as she brings her arms back down from in front to her sides her boobs cannot help but be jostled around once again. Noticing some weird bulges you realise she must be wearing a terribly fitting bra as boobflesh spills over the top of the cups and presses against her tank top.

Gingerly moving her hands up she makes reflexively makes a futile effort to cover her breasts, before giving up and clasping them together instead, "I'm begging you. Please just pick me and I swear I will do anything for you sir."

Managing to tear your eyes away from the 8th and 9th natural wonders of the world you lock your eyes with hers. Damn, those orders must really be working over her mind, it's like she is trying to bore a hole right through me. She looks less scared now and much more... worried? Maybe that obsessive love thing is starting to kick in.

"And the rest," Madam gestures with a get on with it motion before turning to you and continuing, "As I was saying, once this imprinting process occurs there is nothing, and I mean NOTHING, she won't do if she thinks it will make this man happy." Half listening, you watch as Gutterslut pulls off the top and bra in a single motion leaving behind lines and marks where the bra had been digging into those tits. Her areola also come into view, a soft pink oval stretched wider than a palm across each breast.

"She has been sold to 5 different customers, and every one of them ended up sending her back after a few months. It turns out after a month or two the novelty of having a self-tormenting masochist constantly begging for any kind of orders wears off and they toss her away like the poor, broken little cumrag that she is." Reaching for her waist Gutterslut takes an extra moment to hook her thumbs into her jeans then bends down, sliding them down along with her panties. "Do go ahead and give her an order and maybe you will see what I mean."

The new words sink into her mind and while she did her best to hold herself together so far, this second set of changes had obviously pushed her to a new level. Breathing heavily and unsure of what she should do next she starts to blurt out questions. "Sir, am I good enough for you? Can I call you sir, what should I call you? My breasts are the biggest on the campu... the bordello, are they good enough for you sir? Will you be taking me with you?"

Thinking about what to have her do for a moment you decide that Madame Martell has not steered you wrong so far. Turning away you lean in beside her. "What would you suggest Madam?" She tilts her head for a moment to consider the options before swiftly showing off a mean smirk and whispers her idea to you.

Both of you turn back to Gutterslut who continues to stand primed, apparently ready and eager to do anything it takes to make you happy.

"Play with your breasts Gutterslut."

"YES, right away Mr. Birch!"

Unable to move her hands fast enough, she takes the underside of each breast in her hands and begins squeezing them rhythmically against each other and her own body. For the first time since you started messing with her, you see happiness on her face now that you have finally given her purpose. Going along with the first part of the plan you put on your best poker face. Having no clue if she is pleasing you she initially tries going faster as she alternates sinking her hands deep into her breasts and pushing them into one another causing them to form a deep valley of cleavage. Finally, without any feedback to go on she breaks the silence.

"Please master, give me more orders, tell me what you want, anything pleeeaaasee."

"More."

After getting over her initial confusion at your basic order she rearranges her position. Taking a firm grip with one hand under the right breast, Gutterslut awkwardly lifts the whole thing up to her mouth. Using the other hand she pushes the tip to her mouth and starts to suck, hard, on her own nipple. Only after being sure she has a good grasp does she then pull one hand away to start working circles on the other neglected nipple. The sounds of her lips on wet skin and quiet little pops each time she lets up for a second are the only sounds left in the room.

Holy shit, she`s really going at it. She must have spent a ton of time playing with those things by herself. Deciding not to wait this time, you carry on with plan. "More."

"Ahhhh hhaaa, more? But I-I-I... not really sure what else I could do on my own with just my breasts."

"MORE."

Panic again fills her expression as she desperately looks to you hoping for something more specific, which you of course deny her. Hehheh, this should be good.

As you are thinking this, Gutterslut takes a firm grip on her nipples, slipping once on the one she sucked earlier before pulling them forwards away from her torso. After pulling them forward as far as they would go naturally Gutterslut start use more ****, as though she her trying to stretch her obscene tits to be even bigger. Slow pained sighs begin to accompany each breathe, barely audible initially but growing in volume as the size and weight of those ridiculous tits demand she pinches harder and tighter just to hold on. Even as the beginning of tears form in her eyes she pushes on, refusing to stop and holding everything in place. Managing to open her eyes properly once more she looks directly at you and over her abused breasts, begging for your approval.

".....more."

No longer hesitating from your commands she strains her body with the last bit of her energy. Her flesh has nothing left to give, so the grip on her nipples fails at last, causing her breasts to thud heavily against her rib cage. Slumping forward to catch her breath, she leans against the desk as the normal color of her pale skin comes back into her hanging tits. She looks up at you for a moment but surprised as you are by the lengths to which she is clearly willing to go, you decide against demanding more of her this time. This does not seem to stop her however.

"More, I have to do more for you, don't make me stop yet."

With a **** burst of energy she stands, shoulders back and chest thrust forward. Quickly she draws back an open hand down low and behind herself before swiftly bringing it up to meet the underside of an already tormented titty with all the **** she can muster. The slap echoes around room followed immediately by her crying out in pain. Not even giving herself a moment to breathe after the opening strike, she repeats the maneuver again and again, swapping sides as multiple hand prints began to form.

"GUTTERSLUT, THAT'S ENOUGH!" Madame Martell yells, deciding its time to end this. Gutterslut looks frantically at you with a few tears on her reddened face. Agreeing that this is the right time to stop if only for her own good but too shocked to say something, you instead give a single clear nod. The Madame continues, "For now just sit down, rest your breasts on the desk and massage them."

Turning away from the concluded spectacle as Martell once again places a hand on your shoulder and leans in for another private talk. From behind, you hear a long drawn out whine of pain. Without even glancing over Martell sharply yells, "GENTLY massage them Gutterslut!" before continuing to you "I'm so terribly sorry about this Mr. Birch, that was exactly the sort of scene I had been hoping to avoid. As you can plainly see she is simply not suited for an esteemed client such as yourself. I can absolutely assure you she will be severely disciplined after this. Let's move on shall we."

Christ, seeing what she already did to herself I wonder what she thinks would even count as severe discipline.

You take a moment before telling her...