The Digestive Upheaval Upgrade

(WARNING: This route contains gross fetish content, specifically vomiting. If that's not your cup of tea, turn back. You have been warned.)

"Let me guess, this upgrade makes me puke? Something along those lines?" Samus said eyeing the green chip in between her finger and her thumb.

"Correct. The Digestive Upheaval Upgrade alters your digestive tract and necessary organs to turn all your waste into vomit, or as you said, 'puke'. You will have significant control of the intensity and viscosity of your vomit, as well as colour. You can even control minor factors like acidity, taste and slipperiness to help it find its way out, so to speak."

Samus rolled her eyes and stared hard at the chip for a few more seconds as if looking at it hard enough at it would make something happen. But nothing did, so she just sighed and, despite her better judgement, put the chip into the slot in her Zero Suit just above her cleavage. It made a satisfying click sound once it was all the way in, and Samus could feel the microbots rearranging her insides as she stood. At first, it was nearly unnoticeable, then it grew into a not entirely unpleasant tingle. She could feel it ramping up slowly, then suddenly she felt it. She didn't know what 'it' was, but it was immense like her guts had gained sentience and started thrashing about. Of course, it hurt but at the same time, it felt amazing. If it went on long enough, she wasn't sure she could hold back the tears of pain or the orgasm of pleasure that would surely happen.

Orgasming from having her stomach rearranged? despite the pain and pleasure clouding her mind, she had enough wherewithal to feel disgusted with herself. She could feel something start to rise in her belly, then up it went into her throat.

After a moment of stillness and pressure, it came out of her mouth. A chunky, green fluid spilled out onto the floor as she doubled over, in pleasure or pain, she couldn't be sure. Unable to stop herself, she fell to the floor with her face landing right in the puddle of stomach contents. She would have gotten up, but she couldn't deny that on some level, she really found pleasure in the experience. So she lay with shame, inhaling the scent of her vomit. Eventually, she stood back to her feet feeling horrified, embarrassed and lustful all at once. And she didn't entirely hate it.

"I will send a cleaning robot to clean the mess you have made. Please do reserve such activities to the bathroom where possible, or at least outside of the upgrade room. Speaking of, if you have decided to keep this upgrade, feel free to venture into the Sub-Upgrade Room, to expand upon your... experiences. Alternatively, you can install other regular upgrade chips to mix and match, if you so choose."

Rising to her feet and wiping off her vomit, Samus with shaky breath and a moist crotch, made her decision.