You can clearly tell how long she has been holding in her pee before recording this video. She desperately tries to fight it but stands no chance against her full bladder. After having two little accidents in her light blue jeans causing smaller pee stains, she surrenders to the pressure and urniates almost explosively. You can see the light jeans turning darker and wetter in seconds and if you look closely you can even spot the pee squirting out of her pants. After that M gives you a perfect view of every wet spot and even peekaboos her shaved teen pussy at the end of the video.