This is how it usually happens. The girl admits at some point that she needs to pee, then we decide what we are going to do. Here, Sinthia said it gave her an incentive to get out of a bondage situation as quickly as possible, which she certainly did. Now, Sinthia is someone who enjoys bondage and decided it would be a fun idea to be restrained in some way while needing to pee, and compelled to wait until she couldn't hold it any longer. This video captures the entire process, apart from her changing clothes (which she did not do in the bathroom). Two cameras are used and the view switches back and forth between then throughout the video, with the peeing sequence shown twice at the end.

53 minutes 35 seconds - 1920x1080 pixels - MP4: 2,499.5 MB