Lavinia

I love to hold my poo untill I'm so desperate I'm nearly doing it in my knickers. I find the relief is incredible and ever since I can remember I've had a fantasy about actually doing it in my knickers. The problem was untill recently I've never been left alone in the house to do it without getting found out. Well I turned 14 last week and my mum was going out or a few drinks with some friends of hers and I was allowed to stay on my own meaning I could indulge my greatest fantasy. I held it for 4 days and when I went to school I was busting to go. By lunchtime I was so desperate I nearly went to the toilet as I was afraid I'd have an accident but I didn't want to ruin all my plans and clenched hard untill the urge faded. After lunch I went to class and sat at my desk trying my hardest not to poo myself. By home time it was really hard to clench against the pressure that was threatening to force this monster poo into my underwear. I had to walk very carefully to stop it happening and by the time I get home I was within an inch of losing it. My mum could tell I needed the toilet very badly and she remarked about it. I told her was fine in a desperate sounding voice but she knew I was lying and told me to go straight to the toilet before I went in my knickers. I was so disappointed but when I got to the bathroom the urge had faded and I knew I could hold it for a while longer. I sat on the toilet and had a wee but I held my poo back which was really difficult. I stayed in the bathroom for long enough to convince my mum I'd had a good poo and flushed the toilet and went downstairs. My mum asked me if I felt better and I said I did and she believed me. Truth is I was bursting for poo and I still had to wait for her to go out before I could relieve my urgent need.
Finaly my mum went out and I watched out of the window to make sure she got in the taxi and had definitely left. The car drove off and I ran to my room to take my school uniform off but it was already coming out. I decided to keep my uniform on and just let it fill my underwear. I kept going for ages and the feeling was amazing. The relief was incredible and the warmth of it against my skin felt wonderful. When it was over I walked around the house with my knickers still full of poo which felt so good. After half an hour I decided it was time to get cleaned up so I went to the bathroom and got undressed. I had to peel my knickers away from my bum to get them off as I slipped them off I got some poo streaks on the back of my legs. I dropped my knickers in the toilet and flushed them away and then I took a long shower. When that was done I got dressed into my night clothes and waited for my mum to get home.