I'm in constant fear of shitting my pants when I get an erection

It's not normal but you’re not the only one.

For some reason I developed a desire to poop in my underwear when I get an erect***. The first time was at school when a girl fell over in front of me. She was sitting on he side holding her injured knee and must not have realized her panties were on fully display. To my surprise her pants were very dirty and it was quite obvious she had pooed in them. For some reason I had the sudden desire to see what it felt like and couldn’t resist the temptation to try.