Remaining totally unaware of what she had just shat out, she pulled the chain, her waste spiraling away into the sewers, never to be seen again.

Rosaline is saddened by your disappearance, and minor investigation is conducted to find out what happened to you. But nothing is found. All that remained of your body is now just a slight layer of fat on her breasts, the rest packed into a portion of an insignificant turd that nobody would even notice.

Eventually, it is decided you are long gone and life moves on, such disappearances are not uncommon in colleges and there are exams to worry about. Soon, even Rosaline forgets you ever existed.