"When people think of Pokegirl evolution," Professor Linden opined, "they usually think of dramatic events where a Pokegirl changes substantially in size, class, type affinity, and especially power. These events are evolutionary
milestones
, and they are over represented in public discussions of Pokegirl evolution." She brought up some slides with before and after pictures. "It's easy to see how a Pokegirl suddenly gaining a pair of arms, a pair of wings, a pair of spoons, or a pair of cannons makes for an easy and obvious before and after. Like these ones."
The next slide showed two different Pokehirls in six pictures each. Both were Cat Girls, with one going from dangerously furry through various semi-furry stages to a socially acceptable not-furry woman with cat ears and a tail. The other was a similar progression, but the pictures arranged in the other order such that the dangerously furry Cat Girl picture was on the far right. Damian assumed this represented humanization and degeneration of Corruption falling and rising, and the teacher confirmed his suspicions.
The yellow squiggles on Professor Linden's too-tight black shirt danced in a way that Damian had come to recognize as her preparing to say a pun or reference she thought was very funny. He almost never understood what she was getting at, but the smile behind her eyes after she'd said those things showed that she always thought she'd really gotten away with something. "Most of the time, when Pokegirls and trainers evolve, they don't
turn upside down
, they just represent incremental change. Whenever Corruption goes down, the pocket monster evolves to be more human. And whenever Corruption goes up, the pocket monster evolves to become more monstrous. Trainers have to be especially careful, because every trainer has a Pokegirl threshold. That's the point of Corruption which triggers an evolutionary milestone to irrevocably turn into a Pokegirl. Many pocket monsters have very low Pokegirl thresholds, and their transformation into a Pokegirl is inevitable and happens almost as soon as their powers awaken." She trailed off for a bit, perhaps lost in a painful memory.
She recovered her composure and her wet hair swayed like tentacles in a tide. "Ultimately this is why there are so many Pokegirls your age, but even mature milfy trainers who have a high Pokegirl threshold will not be able to hold out for long when sexually submitting to a feral Pokegirl. When a feral Pokegirl sexually dominates a trainer, that trainer's Corruption rises rapidly until it is at the level of the Pokegirl whose pussy they have submitted to. In almost all cases, that entails a permanent transformation into a Pokegirl for that trainer." She let out a heavy sigh. "Anyway, who knows what determines the directionality of gradual Pokegirl evolution?" She surveyed the sea of faces, and the familiar eager hand. "Fine. Gary?"
Gary cleared his throat audibly, more to make sure that everyone knew he was about to speak than to actually clear anything from his air hole. "Gradual evolution effects for rising in level or reducing Corruption are affected by the aesthetic preference of the owner. That would be the Pokegirl herself for an unowned Pokegirl, or the owning trainer for a properly enslave Pokegirl. The level-portion is why almost all Pokegirls and trainers are physically attractive, the so-called beautification of level. Even pocket monsters whose Corruption is completely out of control will go up in level over time, and become more attractive according to their own standards or the standards of their owner." He gestured to himself, as if to remind everyone in the room that Gary Fucking Oak was considered conventionally attractive. "When Corruption goes up, that gradual evolution goes toward archetypal monstrous forms. At evolutionary milestones, the form is usually constrained by the archetypal monster, but a controlled milestone still gives a great deal of control to the owner in terms of post transformational aesthetics."
"Thank you Gary." Professor Linden was already ready to talk about evolutionary milestone constraints. She showed a slide of two Pokegirls, one of which had teal fins and the other had orange tentacles. "These two Pokegirls are actually the same Pokegirl. The Jet Fish Girl had an evolutionary milestone and changed into a Jet Octopus Pokegirl. As you can see, the change was quite dramatic. Not only did she trade in her fins for tentacles, but her breasts enlarged and her cheekbones changed. Even her lips have become fuller, looking like they are about to spit on you. That's because when the Pokegirl's body changes substantially to conform to its new monstrous specifications it also changes to conform to her owner's sexual preferences. The slave's entire body attempts to please the mistress." More slides showed similar glow-ups.
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Esmeralda was the newest addition to their lunchtime crew. She wasn't sitting
at
the table, but underneath it. Her sapphire eyes looked up from between Courtney's thighs while she happily and submissively licked the Loud Noise trainer's cunt. It seemed she was content with the collar that her roommate had put around her neck. Phoebe was explaining things to the submissive trainer. "I should have you know that this is an ass fucking table. Bitches get their asses fucked here, it's no joke. If you don't please my mistress well enough or fast enough, your bitch ass is going to get violated. Maybe I'll do it, because I'm a violator fairy. Maybe we'll run a train and your ass will get fucked again and again. You'll learn to like being fucked up the ass, because your ass is going to become mistress' property and she'll share it with whoever she wants. Maybe even me." It was hard to tell if Esmeralda was listening or not, but Phoebe was absolutely working herself up to some elvish mischief.
Annie and Cathy didn't seem to have any difficulty ignoring Courtney's court, the oral sex and discussions of anal didn't seem to phase them. Partially, this was because Enya and Marina were also under the table, licking the cunts of their mistresses. But despite the sexual activity around them and involving them, they seemed inclined to carry on normal conversations. "It's three weeks to rush week," Annie remarked, "have you decided which sorority you're going to join?" The question had been aimed squarely at Rini, no one thought
Courtney
was the sorority-joining type.
Rini rolled her pink eyes. "You
know
that's not how it works. There's five challenge days and you need an invite from each day to go to the next day. At the end of the fifth day, any of the sororities can offer you a bid. The sororities choose their members, the sisters don't choose their sororities."
Cathy psshawed. "Yeah, but we all know that's bullshit.
We
know who your mom is.
They
know who your mom is. You're going to be on the university sorcery team. Every sorority would be lucky to have you, and they all know it. You could go to all five challenge days in crocs and you'd still sail through with a bid from all four. ΞΞ²Ξ© might even give you
both
bids, just in case. Maybe