She waits for Kelly returns, to tells her she's going to the bathroom.

Mai could wait for Kelly to return and let her know she was going to use her bathroom.

And luckily for her, Kelly came back just as she thought that, carrying a puppy in her arms. Mai found that puppy very adorable.

—Here's him —Kelly left the puppy on Mai's lap. His name is Sprinkles.

—He is very adorable —Mai carried Sprinkles in her hands.

—I know.

Kelly moved a little uneasily and took a few steps back.

—Mai, can you wait a moment? I need to use the bathroom.

—What? Wait...

—I won't delay.

—Kelly, wait! I need...!

But Kelly had already run away. Mai felt the pressure getting worse. She immediately lowered Sprinkles and ran into Kelly's bathroom, using one hand to press on her buttocks.

Mai knocked on the door desperately, as she twisted in place.

—Kelly, Do you delay a lot?

—I don't know, why?

—I need to use the bathroom too.

—You can wait a moment?

—No! Kelly, please hurry, I really, really need to use it! —Mai squealed.

—I understand that you need to use it, but calm down, and...

—Kelly I have diarrhea! I can't hold it any longer! I will shit myself if you don't hurry! —She admitted embarrassedly.

—Oh, sorry, I'm gonna hurry. Just wait a second.

—Please, hurry.

Mai began to tremble, feeling her anus open and close. He had goosebumps and was sweating. She needed Kelly to hurry up, because she couldn't take it anymore. At any second, her anus would open and all her shit would come out.