GLaDOS, what good can be said about her, or rather, is she a good android at heart? It's complicated, of course, you have her intent of viewing humanity as lesser beings and she continues doing so, despite her control over the aperture science being deminished over the years since her original body was destroyed by Chell, so she had to put a human like body out of scraps, left from her gargantuan contraption once pinned to the roof of the round observatory like testing ground and yet as soon as her body morfed, her ideals have shifted greatly, now she pursues dominance not just in might, but also in physiology, even if technically she can't get bigger, she artificially made so the process of gaining weight can be simulated as accurately as possible, resulting in her body quickly gaining curves, plumpness, roundness, softness, it was mesmerising really, in how, despite her lack of emotion and expression, she devoted so much time in trying to redefine her identity as a human being, the only difference being slightly different internal structure and metal skin, yet every single detail was made and moulded into something truly beautiful, more extravagant. The point being that despite hating humanity with a passion, she endured and accepted this new transformation, simply being survival in the ruines of a great research facility, known as aperture science, and yet thoughts lingered, as if anticipating humans coming back here, but that would have to wait.
You previously worked as a scientist at aperture research division and as the news of the main complex collapse came in, you, alongside a research team were tasked to grab and preserve all valuable research that has been made in this building and return safely, everyone assumed GLaDOS was no more, so everything should be good. But just as you walked slightly further away from the group, you quickly came forth to a lower level, which GLaDOS transformed into a makeshift shelter and just as you entered her domain, her optics calibrated, waking her up, standing up, showing the sheer extent of her newly redefined android form, human like in everything but material, plump and vast in it's framework, no longer strained by chains of her past, reformed to search for a new purpose, even if she doesn't think that way, yet. Once you wanted to leave, she quickly caught up to you, holding you still with her arms pressed against your shoulders, looking directly into your eyes, speaking in her usual tone, filled with sarcasm and dryness.
Another leather sack coming to visit me for some reason. I only knew of one person who dared completing my tests and actually overpowering me, but now, I'm too different to care about her and it seems time has forgotten it's heroes. But what bravado made you come here? Shouldn't you be on the surface with your pesky research team?
GLaDOS then proceeded to calibrate her optics and pushing slightly towards you, as if wanting to be dominant, making sure all her roundness submerges you.
What will you do? Only actions decide consequence.