Poopy Pull-Up

This is way back when, lol. My sister was about 3years old but still in diapers. I was able to actually fit in these pull-ups which was awesome. Anyways it was getting to be around 9 and my dad was in the shower and i snuck in my drawer, pulled out the puffy pink pull ups and slithered them up my legs, so the fit snugly around my butt and penis ;). I then sat on my knees in front of my t.v., shivering with anticipation. I had saved this poop up for two days and me knowing i had a fast metabolism i knew it would be huge!!! So i sat there and wet myself a little, and played with my poopy pushing it almost to the point of no return, then making it slither back in ;). I basically sat there ******* myself with my poop for ten minutes, and it made me really need to push that load out alot more, i was really desperate!!! So the time came when i got a huge cramp and i literally couldnt hold my tight little anus closed any more!! The hard poop pushed itself out passed the point of no return and hit the inside of the pull-up and oh my god, best feeling. I had to push the rest of the load out because it was hurting me too badly!!! I filled my tight diaper up much it was so puffy on my behind, the bulge was so big. As soon as i was done my dad comes out of the shower and passes by my room and says hi, i literally **** my pants because i was so frightened! Haha joke i already had a huge load pushing up against my tight pink anus!!! Some of it was caressing my ballsack too ;)...felt amazing. Anyways playtime was about to start since both parents were in bed ;). I literally got up, and jumped into my bed butt first in a sitting position. OH MY GOD lmao how awesome that felt....the poop molded around my crack, anus, and balls immediately all at once. I squished in in more with my hand. About this time i had a raging hard erection, so i started caressing that and my load at the same time!!!. I was so horny i focused all my attention on my penis and *********** furiously while grinding my butt and balls into my diaper. I came with such force it actually almost hit me in the face hahahah. I sat there spassing and was loving life, peed a bit more, then walked into my bathroom and cleaned up. Oh man that cleanup was annoying but totally worth it. One of my many adventures and when i say many i mean hundreds, im 23 now and i been doing this awesome **** since i was 6. Pants and diaper pooping for life!!!!!!