Is it normal to be titillated by memory of accident in front of girlfriend?

It was a long ago January on a cold, bright day. I was 16, my girlfriend 17, and we walked from ice skating to her parent's home. I hadn't stopped at the rest room like I should have. Her parents were out of town and her key wasn't working. Kids were in the yard playing, then stopping to stare at the older kid who danced and cupped the crotch of his tight faded jeans. I was crazy about this girlfriend and prayed I could wait. She stopped working her key in the lock, and watched me so closely, with curiosity and a hint of a smile, enjoying it, and this confused me. I assumed I was too old to have an accident, so didn't worry too much until the last shaking, shuddering seconds, and then a hot explosion erupted, hissing and gushing yellow falls, a geyser penetrating denim, expanding a widening dark circle of glistening darkness over my zipper, up to my belt, spreading out and then down, streaming down my legs, impossibly hot on my thighs, on down, then splattering loudly on the driveway, forming a huge puddle, lasting forever, as I clamped my knees, as my gf and kids stared silently at my pants front turn totally dark. I finally stopped leaking from my penis, and started from my eyes. My gf said soothing things. The kids giggled as she somehow got us inside - two minutes too late. She undressed me as I howled, crying over my realization I had actually peed my pants in front of my gf as well as younger kids, mostly girls. My shock was turning from, this can't happen, to, this did happen. This is the ultimate nightmare, only it was daytime! Who all would find out, I wondered. Would she tell her best friend, Laurie? (Yes, it turned out, but Laurie was nice, and told me it was so okay, and that she admired me for not leaving my gf alone and running away. Said it was brave) So my gf saw me naked for the first time, as she cleaned me up and started the washer. I still wept as she led me to her bedroom, undressed herself, and guided my penis between her legs. She teased me, a little out of nervousness, I think, saying this was a good kind of accident, that I looked like a vulnerable little boy as I crossed my legs in desperation. She said I had treated the younger kids to the entertainment of seeing an older kid could have an accident too. She knew I felt ashamed and told me the kids have no attention span and would not dwell on it, so I shouldn't. She giggled a bit, whispering in my ear and pulling my butt down to make me deeper inside her, and I found myself losing control a second time, spurting my hotness inside her, unable to stop. I still miss my younger boy's nightmare. Is that normal?