Go along with it.

"Ok, let me give you a better angle." You turn yourself around slowly so you can get used to your new center of gravity. Your asshole is soon exposed for your fellow shemale. She slowly extracts her firehose from you, causing your belly to shrink some. After she pulls out with a squishy popping sound, she quickly shoves the wide plug into you to make you hold your shape.

"Kay, done. You can go about your day since my work here is done." Kako gets up and smiles at you, looking satisfied. She exits the room, and you think about what to do.