The heaviest

Mai didn't want to leave so much weight on Mrs. Johnson, so she took the heavier bag. Anyway, she didn't think it was so heavy.

But she was wrong. When she tried to carry the bag, she had to **** harder than she thought, causing a stream of diarrhea to sneak into her panties. She immediately let go of the bag and put a hand on her butt.

"Shit, shit. Not now please" she thought as she fidgeted.

Mai took the heavy bag again, but instead of carrying it, she dragged it all the way to the kitchen. When she looked sideways at Mrs. Johnson, she immediately changed her posture, taking advantage of the fact that the old woman had not seen her yet.

—Oh, Mai, thank you for helping me with this.

—You're welcome.

—I'm going to bake cookies. Do you want some cookies?

Before Mai could respond, a load of shit started sliding out of her anus, trying to sneak into her panties.

—Eh, maybe later. But... Can I use your bathroom?

—Sure, dear. You already know where is.

Mai waited for Mrs. Johnson to leave the kitchen to run to the bathroom.

Mai walked into the bathroom, locked the door, and dropped into the toilet, letting her poop come out.

But she had forgotten one small detail, and didn't realize it until she felt something sticky and hot curling up against her butt. In her desperation to shit, she had forgotten to pull down her panties.

But by the time she wanted to take them off, it was too late. Her panties were already ruined, and most of her shit had already come out. So she finished doing it in her panties.

When all her shit came out, Mai pulled down her panties, letting her poop fall into the toilet and then, with toilet paper, tried to clean them as best she could.

After wiping and wiping her panties, Mai pulled them up, pulled the toilet chain, washed her hands, and went directly to the exit of the house.

—Mai, dear, don't you going to wait for the cookies?! —Mrs. Johnson asked.

—I'm going to change my uniform!

—Oh, well.

Mai hurried back to her house so she could change her panties. The sticky, wet feeling on her butt was not comfortable at all.