May gets further corrupted

The symbiote takes a hold into her brain, infecting it, corrupting so much that her grey matter is now pitchblack. She feels so different, so powerful, so... sexy? She looks at her own small frame and unimpressive body and can't help but feel disgust.

I appear behind her, my arms circling around her waist and chest.
"You're not satisfied huh? That ugly body... You want something else, huh? Just say it, admit it..." My poisonous words are sliding into her ear, making her own parasite take a better hold onto her mind.

"I want a sexier body. I want ~MMM~ bigger titties and stuff." "The corrupted May blurts out in pleasure. She wants everything sexy and sexual. She craves for the corruption the symbiote provides. The mousy nerdy May is gone, replaced by the slutty new May, the kind of slut who only craves sex and shopping.*

It's even more dour than that, the corruption is making her a worse person all over. Gone is the mousy and gentle introverted girl. Now her only goal is to reproduce, claim men, conquer, spread her genes and parasite everywhere, anywhere... her whole being is being changed.

It starts small, with her lips. Her thin lips and small mouth are no more. They're getting plumper and bigger, with a permanent glossy look... They're now perfect dick cushions, perfectly formed for anything sexual, and less pleasant for long conversations...

She feels her lips becoming plumper and bigger, forming into perfect Dick cushions or DSL's. As soon as they are fully formed, she smack them loudly and lick them in thought about inserting a great cock into them for her hungry mouth. They are perfect for cock-sucking, and not so much for boring smart long convos. "Th~ank you~" I say with a lisp, due to her bigger lips/DSL'S/ Dick cushions.