I love to poo my knickers on purpose and when the weather's nice I like to do it in the woods. I did it this afternoon and after holding it all weekend I was busting to go. I put a skirt on and an old pair of gym knickers as I find they can hold more poo than normal underwear. As soon as I walked out of the house I could feel the need to go getting more intense and wasn't sure if I could make it to the woods in time. The walk took around twenty minutes and by the time I got to the woods I was bursting to go. I stood on the main path in the sunshine so there was a risk of someone seeing me if they came by which was a huge turn on but embarrassing. I pushed and filled my knickers with a huge load of soft mushy poo just as a woman walked past me. I was so embarrassed but the relief of it was so good I just pretended I was having an accident. She looked shocked but concerned for me and asked if I was alright. I said I had a stomach upset but I was feeling much better now. She gave me some tissues to help with the cleanup and she admitted that she'd had an accident once when she was desperate.