Leaking diaper in the cafe

In the first part, I wake up in the morning and prepare to go out to a cafe. After standing up from the bed, I put a diaper on and then a pair of jeans over it. The diaper peeks a little out cos I have a very short shirt. I arrive in the cafe, finally, and sit at the table with a cup of coffee and talk on the phone. All of a sudden, I don’t realize I am peeing already in the diaper while sitting in a chair. The cafe is crowded so I don't really know if anyone saw me wetting jeans, cos it seems the diaper is leaking. When I notice it, I suddenly get up and leave the table and run into the bathroom. My diaper leaks through the jeans and my butt gets really wet, so I pull everything down to see what's going on and uncontrollably pee in the diaper again.