Her ass greed takes over and she decides to increase the sensitivity to 75% but something happens.

Samus decides that she's done enough pussyfooting and tests the limits of her upgrade. She first decides to ask the AI a question.

"Do you got any dildos of appropriate size?" Samus inquired and then she sees a dildo easily as big as her torso wide and 8 feet long materialize in front of her.

The AI then replies "As you are in the simulation room, I can produce material items based on your request.". A robot arm then appears and grabs Samus with ease surprisingly.

Samus then decides to go back to the main menu of settings as the robot arm is moving her. She then proceeds to set her sensitivity to 75%. However the robot arm then just drops her on the dildo while she still had her hands on the control and so sensitivity is instead cranked up to 100%.

Not that Samus notices as her insides are stretched to the point where if she was coherent, she would be concerned about her well-being. But as it stands, Samus proceeds to scream in pleasure as she cums literal buckets and her ass starts growing at a ridiculous rate.

Outgrowing Samus herself within a few seconds, then within the next minute, she surpasses minivan size, all the while, Samus is cumming more and more.

"YESSSSSSS! THIS IS WHAT I WAS WANTING! I COULDN'T EVEN STOP GROWING IF I WANTED TO! MORE! MORE! MOREEEEEEEE!!!" As Samus screams this last 'more', the simulation floor circuitry then bugs out due to all the cum on the floor shorting out stuff.

This leads to the dildo disappearing and Samus's asshole gaping open as Samus's ass cheeks is now the size of mobile homes each. Samus feels this emptiness inside her as she catches her breath but still is extremely pleasured as even the slightest movement nearly causes her to orgasm. She then looks back at her ass in awe and... longing, as she realizes it could be way bigger. But she also remembers how the simulation room is a limited size. She's not sure whether she wants to risk breaking the station in order to satisfy her longing, if it could ever be satisfied.