I am 15 years old, and I have a very close relationship with my twin sister. We were on a train on the way to an audition (we are both aspiring musicians). There were little compartments for each pair of passengers with two seats and a sliding door for privacy. I didn't know when we got on that there were no bathrooms. This train ride was 7 hours with no stops, and by about 4 hours I really had to pee. I eventually told my sister once I was desperate. She told me to hold it and I told her that I couldn't. Trying to help me, she found a red bucket in the corner and told me to pee into it. I crouched down onto the floor and held my penis steady as I peed into the bucket.
That's when I heard my sister say that the conductor was coming!!
I zipped up my pants, hid the bucket and bit my lip to keep from peeing in my pants. He came in, collected our tickets, and the second he left I unzipped my pants, grabbed hold of my penis, and completely missed the bucket peeing all over the floor. I was so upset and embarrassed by this that I cried on my sister's shoulder for about 15 minutes.