I had been too afraid to do this for a long time, but the idea aroused me so much. When you offered to film it for me, I finally felt safe and courageous enough to go through with it. We were lying in a beautiful park, basking in the fresh air and sunshine. It felt so good, I could have stayed there all day. However, my stomach had been rumbling for hours, and I urgently needed to use the bathroom. You encouraged me to just let go. Although I was shy and scared, I was also incredibly aroused by the idea. I began to relax my pelvic muscles with your help, stepping out of my comfort zone. As I did, I accidentally peed my white panties, which were visible under my short schoolgirl skirt. This made me even hornier, and I found myself wanting to poop my panties in public. My mix of horniness, shame, and fear caused my butthole to tense up. You enjoyed watching me strain, groan, and huff as I did my best to release the stuck log. You secretly perved on me from all angles, which turned me on even more. Finally, I was able to release a thick shit in my piss-and-pussy juice-soaked panties. The thick poo stain was visible through my white panties. My arousal and embarrassment were at an all-time high. Here I was, in public, with people constantly walking by, wearing white panties full of shit and piss under my short skirt! Uncontrollably horny, I began to moan and touch myself. I was unable to control myself anymore! I needed you to walk me home so I could escape from this embarrassing situation and satisfy my urgent sexual needs with you! Yet, the walk home turned out to be the most scary, exciting, and arousing part of it all…