Yes

Mai took a deep breath and relaxed her buttocks a bit. Several wet farts began to come out, several of these being loud, but at this point she didn't care too much. She was more concerned with keeping her poop in than with the judgmental looks of others.

However, she had relaxed too much and she felt something wet and warm at the back of her panties. She immediately squeezed again and secretly took a hand to her buttocks to check the situation.

As she already suspected, some liquid shit had spilled out and stained her panties. Since she was wearing a skirt, no one would notice the small brown stain on her panties, but if she didn't hurry, that stain would get bigger.

The line moved a little further and Mai had finally entered the bathroom, but all the stalls were taken. A strong cramp hit her and she began to sweat desperately. Mai couldn't wait much longer, the farts began to come out uncontrollably, and she felt that at any moment all her shit would come out.